39th President of Mexico
December 1, 1920 – November 30, 1924
|Preceded by||Adolfo de la Huerta|
|Succeeded by||Plutarco Elías Calles|
|Born||Álvaro Obregón Salido
February 19, 1880
Siquisiva, Navojoa, Sonora
|Died||July 17, 1928
San Ángel, Mexico City
|Political party||Laborist Party (PL)|
|Spouse(s)||María Tapia (1888-1971)|
General Álvaro Obregón Salido (Spanish pronunciation: [ˈalβaɾo oβɾeˈɣon]; February 19, 1880 – July 17, 1928) was the President of Mexico from 1920 to 1924. He supported Sonora's decision to follow Venustiano Carranza as leader of a revolution against the Huerta regime, and Carranza appointed Obregón commander of the revolutionary forces in northwestern Mexico and in 1915 appointed him as his minister of war. In 1920, Obregón launched a revolt against Carranza, in which Carranza was assassinated; he won the subsequent election with overwhelming support.
Obregón's presidency was the first stable presidency since the Revolution began in 1910. He oversaw massive educational reform (with Mexican muralism flourishing), moderate land reform, and labor laws sponsored by the increasingly powerful Regional Confederation of Mexican Workers. In August 1923 he signed the Bucareli Treaty that clarified the rights of the Mexican government and U.S. oil interests and brought U.S. diplomatic recognition to his government. In 1923–24, Obregón's finance minister, Adolfo de la Huerta, launched a rebellion in part protesting the Bucareli Treaty; Obregón returned to the battlefield to crush the rebellion. In his victory he was aided by the United States with arms and 17 U.S. planes that bombed de la Huerta's supporters.
In 1924, Obregón's fellow Northern revolutionary general and hand-picked successor, Plutarco Elías Calles, was elected president, and although Obregón ostensibly retired to Sonora, he remained influential under Calles. Having pushed through constitutional reform to once again make reelection possible, Obregón won the 1928 election, but was assassinated by José de León Toral, a Mexican offended by the government's anti-religious laws, before he could begin his second term. Toral's subsequent trial ultimately led to his execution by firing squad, and it also involved a Capuchin nun named Madre Conchita, who was thought to be the mastermind behind Obregón's murder.
- 1 Early years, 1880–1911
- 2 Military career, 1911–1915
- 3 Early political career, 1915–1920
- 4 President of Mexico, 1920–1924
- 5 Later years, 1924–1928
- 6 Honors
- 7 Legacy
- 8 In popular culture
- 9 Notes
- 10 References
- 11 Further reading
- 12 External links
Early years, 1880–1911
Obregón was born in Siquisiva, Sonora, Municipality of Navojoa, the son of Francisco Obregón and Cenobia Salido. Francisco Obregón had once owned a substantial estate, but his business partner supported Emperor Maximilian during the French intervention in Mexico (1861–1867), and the family's estate was therefore confiscated by the Liberal government in 1867. Francisco Obregón died in 1880, the year of Álvaro Obregón's birth, leaving Álvaro to be raised in poverty by his mother and his older sisters Cenobia, María, and Rosa.
During his childhood, he worked on the family farm and became acquainted with the Mayo people who also worked there. He attended a school run by his brother José in Huatabampo and thus received an elementary education. He spent his teenage years working a variety of jobs, before finding permanent employment in 1898 as a lathe operator at the sugar mill owned by his maternal uncles in Navolato, Sinaloa.
In 1903, he married Refugio Urrea and in 1904, he left the sugar mill to sell shoes door-to-door, and then to become a tenant farmer. By 1906, he was in a position to buy his own small farm, where he grew chickpeas. The next year was tragic for Obregón as his wife and two of his children died, leaving him a widower with two small children, who were henceforth raised by his three older sisters. In 1909, Obregón invented a chickpea harvester and soon founded a company to manufacture these harvesters, complete with a modern assembly line. He successfully marketed these harvesters to chickpea farmers throughout the Mayo Valley.
Military career, 1911–1915
Early military career, 1911–1913
Obregón entered politics in 1911 with his election as municipal president of the town of Huatabampo. Obregón expressed little sympathy for the Anti-reelectionist movement launched by Francisco I. Madero in 1908–1909 in opposition to President Porfirio Díaz. Thus, when Madero began the Mexican Revolution in November 1910 by issuing his Plan of San Luis Potosí, Obregón did not join the struggle against Porfirio Díaz.
Madero succeeded in defeating Porfirio Díaz and thus became President of Mexico in November 1911.
Obregón became a supporter of Madero shortly after Madero became President of Mexico. In March 1912, Pascual Orozco, a general who had fought with Madero during the Mexican Revolution, but had grown disaffected with Madero, launched a revolt against Madero's regime in Chihuahua with the financial backing of Luis Terrazas, a former Governor of Chihuahua and the largest landowner in Mexico.
This Battalion supported federal troops under the command of Victoriano Huerta sent by Madero to crush Orozco's rebellion. Within weeks of joining the Battalion, Obregón displayed signs of military genius. Obregón disobeyed his superior's orders but won several battles by luring his enemy into traps, surprise assaults, and encircling maneuvers.
Obregón had intended to return to civilian life in December 1912, but then in February 1913, the Madero regime was overthrown in a coup d'état (known to Mexican history as La decena trágica) orchestrated by Victoriano Huerta, Félix Díaz, Bernardo Reyes, and Henry Lane Wilson, the United States Ambassador to Mexico. Huerta assumed the presidency.
Obregón immediately traveled to Hermosillo to offer his services to the government of Sonora in opposition to the Huerta regime. The Sonoran government refused to recognize the Huerta regime, and in early March 1913, Obregón was appointed chief of Sonora's War Department. In this capacity, he set out on campaign, and in a matter of days had managed to drive federal troops out of Nogales, Cananea, and Naco. He soon followed up by capturing the port city of Guaymas. He squared off against federal troops in May 1913 at the battle of Santa Rosa through an encirclement of enemy forces. As commander of Sonora's forces, Obregón won the respect of many revolutionaries who had fought under Madero in 1910–11, most notably Benjamín G. Hill.
Struggle against the Huerta Regime, 1913–1914
The Sonoran government was in contact with the government of Coahuila, which had also refused to recognize the Huerta regime and entered a state of rebellion. A Sonoran delegation headed by Adolfo de la Huerta traveled to Monclova to meet with the Governor of Coahuila, Venustiano Carranza. The Sonoran government signed on to Carranza's Plan of Guadalupe, by which Carranza became "primer jefe" of the newly- proclaimed Constitutional Army. On 30 September 1913, Carranza appointed Obregón commander-in-chief of the Constitutional Army in the Northwest, with jurisdiction over Sonora, Sinaloa, Durango, Chihuahua, and Baja California.
Obregón and other Sonorans were deeply suspicious of Carranza's Secretary of War, Felipe Ángeles, because they considered Ángeles to be a holdover of the old Díaz regime. At the urging of the Sonorans (the most powerful group in Carranza's coalition following Obregón's victories in the Northwest), Carranza downgraded Ángeles to the position of Sub-Secretary of War.
In spite of his demotion, Ángeles formulated the rebel grand strategy of a three-prong attack south to Mexico City: (1) Obregón would advance south along the western railroad, (2) Pancho Villa would advance south along the central railroad, and (3) Pablo González Garza would advance south along the eastern railroad.
Obregón began his march south in April 1914. Whereas Pancho Villa preferred wild cavalry charges, Obregón was again more cautious. Villa was soon at odds with Carranza, and in May 1914, Carranza instructed Obregón to increase the pace of his southern campaign to ensure that he beat Villa's troops to Mexico City. Obregón moved his troops from Topolobampo, Sinaloa, to blockade Mazatlán, and then to Tepic, where Obregón cut off the railroad from Guadalajara, Jalisco, to Colima, thus leaving both of these ports isolated.
In early July, Obregón moved south to Orendaín, Jalisco, where his troops defeated federal troops, leaving 8000 dead, and making it clear that the Huerta regime was defeated. Obregón was promoted to major general. He continued his march south. Upon Obregón's arrival in Teoloyucan, Mexico State, it was clear that Huerta was defeated, and, on 11 August, on the mudguard of a car, Obregón signed the treaties that ended the Huerta regime. On 16 August 1914, Obregón and 18,000 of his troops marched triumphantly into Mexico City. He was joined shortly by Carranza, who marched triumphantly into Mexico City on 20 August.
In Mexico City, Obregón moved to exact revenge on his perceived enemies. He believed that the Mexican Catholic Church had supported the Huerta regime, and he therefore imposed a fine of 500,000 pesos on the church, to be paid to the Revolutionary Council for Aid to the People.
He also believed that the rich had been pro-Huerta, and he therefore imposed special taxes on capital, real estate, mortgages, water, pavement, sewers, carriages, automobiles, bicycles, etc. Special measure were also taken against foreigners. Some of these were deliberately humiliating: for example, he forced foreign businessmen to sweep the streets of Mexico City.
Break with Pancho Villa and Emiliano Zapata, 1914
Tensions between Carranza and Pancho Villa grew throughout 1914, as Villa created a number of diplomatic incidents that Carranza was worried would invite outside intervention in the Mexican Revolution. On 8 July 1914, Villistas and Carrancistas had signed the Treaty of Torreón, in which they agreed that after Huerta's forces were defeated, 150 generals of the Revolution would meet to determine the future shape of the country. However, Carranza disliked Villa's insubordination so much that he refused to let Villa march into Mexico City in August. In September, Villa and Carranza formally split, and during this time Obregón paid a visit to Villa that nearly resulted in Villa's having Obregón shot.
The Convention that the Carrancistas and Villistas had agreed to in the Treaty of Torreón went ahead at Aguascalientes on 5 October 1914. Carranza did not participate in the Convention of Aguascalientes because he was not a general, but, as a general, Obregón participated. The Convention soon split into two major factions: (1) the Carrancistas, who insisted that the Convention should follow the promise of the Plan of Guadalupe and restore the 1857 Constitution of Mexico; and (2) the Villistas, who sought more wide-ranging social reforms than set out in the Plan of Guadalupe. The Villistas were supported by Emiliano Zapata, leader of the Liberation Army of the South, who had issued his own Plan of Ayala, which called for wide-ranging social reforms. For a month and a half, Obregón maintained neutrality between the two sides, and tried to reach a middle ground that would avoid a civil war.
Eventually, it became clear that the Villistas/Zapatistas had prevailed at the Convention; Carranza, however, refused to accept the Convention's preparations for a "preconstitutional" regime, which Carranza believed was totally inadequate, and in late November, Carranza rejected the authority of the regime imposed by the Convention. Forced to choose sides, Obregón naturally sided with Carranza and left the Convention to fight for the Primer Jefe. He had made many friends amongst the Villistas and Zapatistas at the Convention, and was able to convince some of them to depart with him. On December 12, 1914, Carranza issued his Additions to the Plan of Guadalupe, which laid out an ambitious reform program, including Laws of Reform, in conscious imitation of Benito Juárez's Laws of Reform.
Battle with the Conventionists, 1915
Once again, Obregón was able to recruit loyal troops by promising them land in return for military service. In this case, in February 1915, the Constitutionalist Army signed an agreement with the Casa del Obrero Mundial ("House of the World Worker"), the labor union with anarcho-syndicalist connections which had been established during Francisco I. Madero's presidency. As a result of this agreement, six "Red Battalions" of workers were formed to fight alongside the Constitutionalists against the Conventionists Villa and Zapata. This agreement had the side effect of lending the Carrancistas legitimacy with the urban proletariat.
Obregón's forces easily defeated Zapatista forces at Puebla in early 1915. However, the Villistas remained in control of large portions of the country. Forces under Pancho Villa were moving towards the Bajío; Felipe Ángeles' forces occupied Saltillo and thus dominated the northeast; the forces of Calixto Contreras and Rodolfo Fierro controlled western Mexico; and forces under Tomás Urbina were active in Tamaulipas and San Luis Potosí.
The armies of Obregón and Villa clashed in four battles, collectively known as the Battle of Celaya, the largest military confrontation in Latin American history before the Falklands War of 1982. The first battle took place on 6 April and 7 April 1915 and ended with the withdrawal of the Villistas. The second, in Celaya, Guanajuato, took place between 13 April and 15 April, when Villa attacked the city of Celaya, but was repulsed. The third was the prolonged position battle of Trinidad and Santa Ana del Conde between 29 April and 5 June, which was the definitive battle. Villa was again defeated by Obregón, who lost his right arm in the fight.
Villa made a last attempt to stop Obregón's army in Aguascalientes on 10 July, but without success. Obregón distinguished himself during the Battle of Celaya by being one of the first Mexicans to comprehend that the introduction of modern field artillery, and especially machine guns, had shifted the battlefield in favor of a defending force. In fact, while Obregón studied this shift and used it in his defense of Celaya, generals in the World War I trenches of Europe were still advocating bloody and mostly failing mass charges.
Early political career, 1915–1920
Minister of War in Carranza's Preconstitutional Regime, 1915–1916
In May 1915, Carranza had proclaimed himself the head of what he termed a "Preconstitutional Regime" that would govern Mexico until a constitutional convention could be held. Carranza appointed Obregón as Minister of War in his new cabinet.
As Minister of War, Obregón determined to modernize and professionalize the Mexican military thoroughly. In the process, he founded a staff college and a school of military medicine. He also founded the Department of Aviation and a school to train pilots. Munitions factories were placed under the direct control of the military.
Break with Carranza, 1917–1920
In September 1916, Carranza convoked a Constitutional Convention, to be held in Querétaro, Querétaro. He declared that the liberal 1857 Constitution of Mexico would be respected, though purged of some of its shortcomings.
However, when the Constitutional Convention met in December 1916, it contained only 85 conservatives and centrists close to Carranza's brand of liberalism, a group known as the bloque renovador ("renewal faction"). Against them were 132 more radical delegates who insisted that land reform be embodied in the new constitution.
Obregón now broke with Carranza and threw his considerable weight behind the radicals. He met with radical legislators, as well as the intellectual leader of the radicals, Andrés Molina Enríquez, and came out in favor of all their key issues. In particular, unlike Carranza, Obregón supported the land reform mandated by Article 27 of the constitution. He also supported the heavily anticlerical Articles 3 and 130 that Carranza opposed.
Shortly after swearing his allegiance to the new Constitution, Obregón resigned as Minister of War and retired to Huatabampo to resume his life as a chickpea farmer. He organized the region's chickpea farmers in a producer's league and briefly entertained the idea of going to France to fight on the side of the Allies in World War One. He made a considerable amount of money in these years, and also entertained many visitors. As the victorious general of the Mexican Revolution, Obregón remained enormously popular throughout the country.
By early 1919, Obregón had determined to use his immense popularity to run in the presidential election that would be held in 1920. Carranza announced that he would not run for president in 1920, but refused to endorse Obregón, instead endorsing an obscure diplomat, Ignacio Bonillas. Obregón announced his candidacy in June 1919. In August, he concluded an agreement with Luis Napoleón Morones and the Regional Confederation of Mexican Workers, promising that if elected, he would create a Department of Labor, install a labor-friendly Minister of Industry and Commerce, and issue a new labor law.
Obregón began to campaign in earnest in November 1919.
In the meantime, Carranza seemed determined to stop Obregón. At Carranza's behest, the Senate stripped Obregón of his military rank, a move which only increased Obregón's popularity. Then, Carranza ochestrated a plot in which a minor officer claimed that Obregón was planning an armed uprising against the Carranza regime. Obregón was forced to disguise himself as a railwayman and flee to Guerrero, where one of his former subordinates, Fortunato Maycotte, was governor. When the election was held, Bonillas defeated Obregón.
On 20 April 1920 Obregón issued a declaration in the town of Chilpancingo accusing Carranza of having used public money in support of Bonillas's presidential candidacy. He declared his allegiance to the Governor of Sonora, Adolfo de la Huerta, in revolution against the Carranza regime.
On 23 April, the Sonorans issued the Plan of Agua Prieta, which triggered a military revolt against the president. Obregón's Sonoran forces were augmented by troops under General Benjamín G. Hill and the Zapatistas led by Gildardo Magaña and Genovevo de la O.
The revolt was successful and Carranza was deposed. On 20 May 1920, Carranza was killed in the state of Puebla in an ambush led by General Rodolfo Herrero as he fled from Mexico City to Veracruz on horseback.
For six months, from 1 June 1920 to 1 December 1920, Adolfo de la Huerta served as provisional president of Mexico until elections could be held. When Obregón was declared the victor, de la Huerta stepped down and assumed the position of Secretary of the Treasury in the new government.
President of Mexico, 1920–1924
Obregón's election as president essentially signaled the end of the violence of the Mexican Revolution. The death of Lucio Blanco in 1922 and the assassination of Pancho Villa in 1923 would eliminate the last remaining obvious challenges to Obregón's regime.
Educational reforms and cultural developments
Obregón appointed José Vasconcelos (Rector of the National Autonomous University of Mexico who had been in exile 1915–1920 because of his opposition to Carranza) as his Secretary of Public Education. Vasconcelos undertook a major effort to construct new schools across the country. Over 1,000 rural schools were constructed, together with almost 2,000 public libraries.
Vasconcelos was also interested in promoting artistic developments. As such, Obregón's time as president saw the beginning of the art movement of Mexican muralism, with artists such as Diego Rivera, David Alfaro Siqueiros, José Clemente Orozco, and Roberto Montenegro invited to create murals expressive of the spirit of the Mexican Revolution on the walls of public buildings throughout Mexico.
Obregón kept his August 1919 agreement with Luis Napoleón Morones and the Regional Confederation of Mexican Workers (CROM) and created a Department of Labor, installed a labor-friendly Minister of Industry and Commerce, and issued a new labor law.
Morones and CROM became increasingly powerful in the early 1920s and it would have been very difficult for Obregón to oppose their increased power. Morones was not afraid to use violence against his competitors, nearly eliminating the General Confederation of Workers in 1923.
CROM's success did not necessarily translate to success for all of Mexico's workers, and Article 123 of the Constitution of Mexico was enforced only sporadically. Thus, while CROM's right to strike was recognized, non-CROM strikes were broken up by the police or the army. And few Mexican workers got Sundays off with pay, or were able to limit their workday to eight hours.
Land reform was far more extensive under Obregón than it had been under Carranza. Obregón enforced the constitutional land redistribution provisions, and in total, 921,627 hectares of land were distributed during his presidency.
The Mexican Catholic Church during Obregón's presidency
Many leaders and members of the Roman Catholic Church in Mexico were highly critical of the 1917 constitution. They especially criticized Article 3, which forbade religious instruction in schools, and Article 130, which adopted an extreme form of separation of church and state, including a series of restrictions on priests and ministers of all religions to hold public office, canvass on behalf of political parties or candidates, or to inherit from persons other than close blood relatives, etc.
Although Obregón was suspicious of the Catholic Church, he was less anticlerical than his successor, Plutarco Elías Calles, whose policies would lead to the Cristero War (1926–29). For example, he sent Pope Pius XI congratulations upon his election in 1922 and, in a private message to the pope, emphasized the "complementarity" of the aims of the Catholic Church and the Mexican Revolution.
In spite of Obregón's moderate approach, his presidency saw the beginnings of clashes between Catholics and supporters of the Mexican Revolution. Some bishops campaigned actively against land distribution and against the organization of workers into secular unions. Catholic Action movements were founded in Mexico in the wake of Pius XI's 1922 encyclical Ubi arcano Dei consilio, and supporters of the Young Mexican Catholic Action soon found themselves in violent conflict with CROM members.
The most serious diplomatic incident occurred in 1923, when Ernesto Filippi, the Apostolic Nuncio to Mexico, conducted an open air religious service in spite of the fact that it was illegal to hold a religious service outside a church. The government invoked Article 33 of the constitution and expelled Filippi from Mexico.
As president, one of Obregón's top priorities was securing US diplomatic recognition of his regime. Although he rejected the U.S. demand that Mexico rescind Article 27 of the constitution, Obregón negotiated a major agreement with the United States, the Bucareli Treaty of August 1923 that made some concessions to the US in order to gain diplomatic recognition. It was particularly helpful when the Mexican Supreme Court, in a case brought by Texas Oil, declared that Article 27 did not apply retroactively. Another important arena in which Obregón resolved issues with the U.S. and other foreign governments was the Mexican-United States General Claims Commission. Finance Minister Adolfo de la Huerta signed a deal in which Mexico recognized a debt of $1.451 million to international bankers. Finally, at the Bucareli Conference, Obregón agreed to an American demand that Mexico would not expropriate any foreign oil companies, and in exchange, the U.S. recognized his government. Many Mexicans criticized Obregón as a sellout (entreguista), including Adolfo de la Huerta for his actions at the Bucareli Conference.
The de la Huerta rebellion, 1923–24
In 1923, Obregón endorsed Plutarco Elías Calles for president in the 1924 election (in which Obregón was not eligible to run). Finance Minister Adolfo de la Huerta (who had served as interim president in 1920, before stepping aside in favor of Obregón) believed that he deserved to be the next president and that Obregón was repeating Carranza's mistake of imposing his own candidate on the country. De la Huerta therefore accepted the nomination of the Cooperativist Party to be its candidate in the presidential elections.
De la Huerta then organized an uprising against Obregón. Over half of the army joined de la Huerta's rebellion, with many of Obregón's former comrades in arms now turning on him. Rebel forces massed in Veracruz and Jalisco.
In a decisive battle at Ocotlán, Jalisco, Obregón's forces crushed the rebel forces. Diplomatic recognition by the United States following the signing of the 1923 Bucareli Treaty was significant in Obregón's victory over rebels. The U.S. supplied Obregón arms, but also aided him by sending 17 U.S. planes that bombed rebels in Jalisco. Obregón hunted down many of his former friends and had them executed.
Following the crushing of the rebellion, Calles was elected president of Mexico and Obregón stepped down from office.
Later years, 1924–1928
Following the election of Calles as president, Obregón returned to Sonora to farm. He led an "agricultural revolution" in the Yaqui Valley, where he introduced modern irrigation. Obregón expanded his business interests to include a rice mill in Cajeme, a seafood packing plant, a soap factory, tomato fields, a car rental business, and a jute bag factory.
Obregón remained in close contact with President Calles, whom he had installed as his successor, and was a frequent guest of Calles at Chapultepec Castle. This prompted fears that Obregón was intending to follow in the footsteps of Porfirio Díaz and that Calles was merely a puppet figure, the equivalent of Manuel González. These fears became acute in October 1926, when the Mexican Congress repealed term limits, thus clearing the way for Obregón to run for president in 1928.
Obregón returned to the battlefield for the period October 1926 to April 1927 to put down a rebellion led by the Yaqui people. This was somewhat ironic because Obregón had first risen to military prominence commanding Yaqui troops, to whom he promised land, and the 1926–27 Yaqui rebellion was a demand for land reform. In all likelihood, Obregón participated in this campaign in order to prove his loyalty to the Calles government, to show his continued influence over the military, and also to protect his commercial interests in the Yaqui Valley, which had begun to suffer as a result of the increasing violence in the region.
Obregón formally began his presidential campaign in May 1927. CROM and a large part of public opinion were against his re-election, but he still counted on the support of most of the army and of the National Agrarian Party.
Two of Obregón's oldest allies, General Arnulfo R. Gómez and General Francisco "Pancho" Serrano, opposed his re-election. Serrano launched an anti-Obregón rebellion and was ultimately assassinated. Gómez later called for an insurrection against Obregón but was soon killed as well.
Re-election and assasination
Obregón won the 1928 Mexican presidential election, but months before assuming the presidency he was assassinated. Calles's harsh treatment of Roman Catholics had led to a rebellion known as the Cristero War, which broke out in 1926. As an ally of Calles, Obregón was hated by Catholics and was assassinated in La Bombilla Cafe on July 17, 1928, shortly after his return to Mexico City, by José de León Toral, a Roman Catholic opposed to the government's policies on religious matters.
Álvaro Obregón was awarded Japan's Order of the Chrysanthemum at a special ceremony in Mexico City. On November 26, 1924, Baron Shigetsuma Furuya, Special Ambassador from Japan to Mexico, conferred the honor on the President.
An imposing monument to Álvaro Obregón is located in the Parque de la Bombilla, Avenida Miguel Ángel de Quevedo at Insurgentes, San Ángel, Mexico City. It is the largest monument to a Revolutionary figure and stands in the place where Obregón was assassinated.
In popular culture
In the novel The Friends of Pancho Villa (1996), by James Carlos Blake, Obregón is a major character.
Obregón is also featured in the novel Il collare spezzato by Italian writer Valerio Evangelisti (2006).
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- Hall, Linda B (1981). Álvaro Obregón: power and revolution in Mexico, 1911–1920. College Station: Texas A&M University Press. 10-ISBN 0890961131/13-ISBN 9780890961131; OCLC 7202959
- Castro, Pedro (2009). Álvaro Obregón: Fuego y cenizas de la Revolución Mexicana. Ediciones Era – Consejo Nacional para la Cultura y las Artes. ISBN 978-607-445-027-9 (ERA) – ISBN 978-607-455-257-7 (CNCA); Sitio de Pedro Castro
- Lucas, Jeffrey Kent (2010). The Rightward Drift of Mexico's Former Revolutionaries: The Case of Antonio Díaz Soto y Gama. Lewiston, NY: Edwin Mellen Press. 13-ISBN 9780773436657/13-ISBN 0773436650; F1234.D585 L83 2010
- Admiring essay on the Battle of Celaya with a focus on the tactics used by General Obregón.
- Herbert Ingram Priestley (1922). "Obregón, Alvaro". Encyclopædia Britannica (12th ed.).
Adolfo de la Huerta
|President of Mexico
1 December 1920 – 30 November 1924
Plutarco Elías Calles