Prussian Settlement Commission
The Prussian Settlement Commission (German: Königlich Preußische Ansiedlungskommission in den Provinzen Westpreußen und Posen; Polish: Królewska Komisja Osadnicza dla Prus Zachodnich i Poznańskiego) was a Prussian government commission that operated between 1886 and 1924, but actively only until 1918. It was set up by Otto von Bismarck to increase land ownership by Germans at the expense of Poles, by economic and political means, in the German Empire's eastern provinces of West Prussia and the Posen as part of his larger efforts aiming at the eradication of the Polish nation. The Commission was motivated by anti-Polish sentiment and racism.
The Commission was one of Prussia's prime instruments in the official policy of Germanization of the historically Polish lands of West Prussia (the former Royal Prussia) and the dissolved Grand Duchy of Posen. The Commission ultimately purchased 613 estates from German owners and 214 from Poles, functioning to bail out German debtors often rather than fulfilling its declared national mission. By the end of its existence, a total of 21,886 German families (154,704 persons) out of a planned 40,000 had been settled. The Commission's activities had a countereffect in Poles using what has been termed "defensive nationalism", unifying "Polish nationalism, Catholicism and cultural resistance" and triggered Polish countermeasures, climaxing after World War I, when the Second Polish Republic was established, in the expropriation of Commission-owned lands and reversing Germanization. Some of the German colonists still remaining in Poland in 1939 were active in a Nazi campaign of genocide against Poles during World War II.
- 1 Name
- 2 Background
- 3 Goals
- 4 Funding
- 5 Acquisitions settlement and land purchase
- 6 Origin of the settlers
- 7 Impact on the ethnic composition
- 8 Legislation
- 9 Polish countermeasures
- 10 First World War
- 11 Outcome
- 12 Influence on Nazism
- 13 References
- 14 External links
- 15 See also
English translations include German Colonization Commission for Poznań, Prussian Colonization CommissionThe Royal Commission of Colonization for West Prussia and Posnania). The majority of Polish sources translate the title as Colonization Commission rather than Settlement Commission, which is more politically charged. The issue of translation is also connected to the fact that in 1904 the legal difference between settlement and colony was abolished in Prussia.
Kingdom of Prussia
The Kingdom of Prussia during the partitions of Poland acquired West Prussia (German: Westpreußen, Polish: Prusy Zachodnie) and the later Province of Posen (Provinz Posen, Prowincja Poznańska). The Polish language was abolished as an official language and German introduced. Frederick the Great hoped to replace Poles with Germans. Most of administration was made German as well. Poles were portrayed as "backward Slavs" by Prussian officials who spread German language and culture. The lands of Polish nobility were confiscated and given to German nobles. The Prussian hold on Polish areas was somewhat weakened after 1807 where parts of its partition were restored to Duchy of Warsaw. The power status of Prussia was dependent on hindering any form of Polish statehood and it didn't support Polish attempts at restoration of Poland during Congress of Vienna, where Prussia tried to gain Duchy of Warsaw or at least its western provinces. In 1815 the Prussian king made several guarantees in his speech to Poles in the newly formed Grand Duchy of Posen (created out of territories of Duchy of Warsaw) in regards to rights of Polish language and cultural institutions. However, in practice the right to use Polish in courts and institutions was respected only till 1830. While the Poles constituted the majority of population in the area, they held only 4 out 21 official posts of higher level. Despite the colonization action carried on during period 1793 — 1806 there were hardly 11.1 per cent of Germans in Poznań in 1815  5 From 1832 Poles could no longer hold higher posts at local administrative level (landrat). At the same time the Prussian government and Prussian King pursued germanisation of administration and judicial system, while local officials enforced germanisation of educational system and tried to eradicate the economic position of Polish nobility. The provincial parliament issued calls to ensure the right of use of Polish language and called for creation Polish educational institutions as well as autonomy, but those requests were rejected by Prussian state. In 1847 two hundred fifty seven Polish activists were imprisoned upon charges of conspiracy and eight of them sentenced to death, the Spring of Nations however stopped their execution. The Frankfurt Parliament showed that German delegates refused to accept the rights of non-German people and while Prussian government declared itself ready to discuss Polish concerns, it soon made the Prussian military crush down the movement of Polish activists and peasants demanding freedom. Afterwards the victorious Prussian government retreated from its earlied declartions of autonomy in Wielkpolska region.
Earlier settlement attempts by the Kingdom of Prussia
Prior to the Settlement Commission the Kingdom of Prussia had made a number of attempts to settle ethnic Germans in regions inhabited by Poles.
Frederick the Great, who treated Poles with contempt and called them 'slovenly Polish trash', settled around 300,000 colonists in the eastern provinces of Prussia and aimed at a removal of the Polish nobility. Another colonization attempt aimed at Germanisation was pursued by Prussia after 1832.
In 1871, the German Empire was founded with Prussia being the leading and dominating state. The advent of the Kulturkampf marked a period, when the Prussian government attempted to Germanise the Poles through language, schooling, and religious restrictions. Later, the increase in the sheer numbers of Poles led the government to a direct anti-Polish demographic policy. The Polish population in the province of Posen (Poznań) made up for nearly 60% (1,049,000 Poles vs 702,000 Germans in 1890), and in West Prussia for one third of the population (484,000 Poles vs 949,000 Germans in 1890). By 1885, Prussia still faced difficulties digesting her "Polish provinces", and the "Polish Question" was one of the Reich's most pressing problems. The state itself was led by German nationalism and Bismarck viewed Poles as one of the chief threat to German power; as he declared The Polish question is to us a question of life and death and wanted Polish nation to disappear in private going as far as expressing his wish to exterminate Poles As a result, the Polish population faced economic, religious and political discrimination the Germanisation of their territories was promoted and in places where Poles and Germans lived a virtual apartheid existed.
In the late 19th century, an east-to west migration (Ostflucht) took place, in which parts of the population of the eastern provinces migrated to western, more prosperous territories. The German government was concerned that Ostflucht would lower the percentage of Germans in the eastern regions. This event was used as pretext and justification presented to the international community for actions aiming at Germanisation of those provinces. In reality both Poles, Jews and Germans moved to richer western German provinces 
The goals of the Commission were the financial weakening of Polish landowners, and ensuring Germanisation of Polish cities as well as rural areas. The destruction of Polish landownership combined with the fight against the Polish clergy (Kulturkampf) was to achieve the elimination of a Polish national identity. Polish landowners were regarded by Bismarck as the principal agitators for Polish nationalism, purchasing their estates and parceling them out to Germans in family-sized farms was intended to both disestablish this group and significantly increase the numbers of Germans in these areas.
The focus on land ownership was motived by the German "völkisch" idea that "where the German plough will plow, there German fatherland will arise". The settlement was to isolate Polish settlements in German inhabited areas by surrounding them with German settlements and spread German ones into Polish dominated areas to isolate specified Polish villages from the rest. The German settlements were to be always concentrated to provide a "barrier" to Polishness. While the Commission bought mostly German land, this was not interfering with the goal of increase of German presence, and buying a large tract of land from a single German owner to distribute it among many German colonists was perceived as beneficial to the goal. Of the colonists, 96.9% were Protestants as the Prussian authorities believed that ‘the true German is a Protestant". The whole practice was new and unheard in Europe. Besides Ostflucht, the German government justified its action to the international community by labeling Poles as internal enemies of the state. Those attempts didn’t achieve much success. Bismarck himself said that the Poles who find themselves without land should "move to Morocco".
The funding for the Commission was:
By 1914 the overall funding for the Commission was 955 million marks. Additional funds were awarded to assistance projects such crediting bankrupt German estates (125 million marks in 1908).
Due to operations of the Commission the price of land in Polish territories rose in response. The economical attempt to Germanise those areas failed and with the beginning of World War I German authorities and leading members of Commission started to look for new ways to secure German foothold on Polish territory.
Acquisitions settlement and land purchase
While the commission planned to settle up to 40,000 families in Posen and West Prussia, it only managed to settle a total of 21,866 families until 1914, bringing the number of German colonists to 154,000.
Acquisitions by 1901
From 26 April 1886 until 1 January 1901, the Settlement Commission purchased 147,475 ha (3.64% of the Province of Posen and 1.65% of West Prussia), and settled 4,277 families (about 30,000 persons). A publication from German Empire named Meyers Großes Konversations-Lexikon claimed that in 1905-1906 that only 2,715 families were not native to these provinces. After this, the original budget of 100,000,000 marks was exhausted.
Acquisitions by 1913
By 1913, the SC had bought up about 5.4% of the land in West Prussia and 10.4% in Posen. By then, 450 new villages were founded, a total area of 438,560 ha was purchased, of which 124,903 ha were purchased from Poles. In 1914, Germans owned 59% of land in Province of Posen, while making up for about 40% of population in 1890.
Throughout its 32 years of existence the Commission was able to buy 8% of the total land in Posen and West Prussia. Altogether, about 22,000 families were settled, bringing the number of German colonists to 154,000. 5,400 families were German arrivals taken from other parts of the partitioned Poland, Congress Poland (Russian Empire province) and Galicia (Austrian province).
Overall, the commission bought 828 estates (430,450 ha) for 443 million marks, 214 of those (115,525 ha) from Poles for 96,4 million marks, and the other 614 (314,926 ha) from Germans for 346,7 million marks. Further the commission bought 631 peasant farms (30,434 ha) for 44,5 million marks, 274 of those (11,152 ha) from Poles for 16,6 million marks and the other 357 (19,282 ha) from Germans for 27,9 million marks. Of the total of 955 million marks spent, about half (488 million marks) was spent for the actual land purchase, while the rest was spent for administration, parcellisation, infrastructure etc.
Origin of the settlers
To Germanise the region predominantly German military units were sent and later included in the region's population figures. Germans from West Prussia and Greater Poland region who took part in the settlement process declined over time, while the number of Germans from the Russian Empire increased. In the first years (1886–90), locals from Greater Poland and West Prussia constituted 48% of the settlers while the proportion of Germans from Russia was below 1%, however in the years 1902-1906, locals only made up for 17% and Germans from Russia for 29% of the settlers.
Of those settled until the end of 1906, a quarter originated in Posen and West Prussia, another quarter in the neighboring provinces of East Prussia, Pomerania, Brandenburg, Saxony and Silesia, 30% from other parts of the German Empire and 20% from outside the empire, especially from Russia.
Impact on the ethnic composition
One of the chief aims of the Commission was to stop the restoration of Polish population in Germanised territories of Greater Poland which was restoring its numbers after drastic fall during initial Prussian takeover. While the Commission never fully realised its goals, it managed to weaken Polish influence. In Greater Poland the Polish share of the population didn't reach its pre-1815 levels:
|Ethnic composition of the Greater Poland|
|Ethnic composition of West Prussia|
* including bilinguals
According to Władysław Kulski the Commission was only a part of the German efforts to eradicate Poles from territories conquered by Prussia from Poland;in addition to 154,000 colonists, Germany also settled 378,000 German military personnel and officials in Polish territories.
As the economic approach showed to be a failure, various laws were enacted to promote the Settlement Commission's aims.
- 1896: Land acquired from the commission could be sold freely only to the settler's next of kin: the commission's approval was required for any other sale.
- 1904: The Prussian Government sought to restrict Poles from acquiring land, if this would interfere with the goals of the commission. Any new settlement required a building permit, even if it were only for renovation of an existing building to make it habitable. Local officials routinely denied these permits to Poles. The law faced international criticism and opposition from liberal groups concerned about private property rights. The Prussian Administrative High Court ended this legislation
- 1908: The Prussian diet passed a law permitting the forcible expropriation of Polish landowners by the Settlement Commission. In 1912, four Polish large estates of 1,656 ha were expropriated. The law faced criticism from international community and liberals concerned about the free market rights. Additionally, the Austrian State Council, upon the request of the Poles, who enjoyed considerable autonomy and influence in Austro-Hungary, condemned the actions of German government. Rota, a patriotic poem by Maria Konopnicka was created as response to this law. Newspapers[who?] in Europe wrote that Prussia is becoming a "police state". In part due to those protests, the law's execution was delayed until 1914.
- 1913: To prevent Poles redistributing their land to other Poles, a law was passed that forbade the dividing of private land without the agreement of the state.
Other measures in support of the Germanisation policy included:
- Ethnic Germans were favoured in government contracts and only they won them, while Poles always lost.
- Ethnic Germans were also promoted in investment plans, supply contracts.
- German craftsmen in Polish territories received the best locations in cities from authorities so that they could start their own business and prosper.
- Soldiers received orders that banned them from buying in Polish shops and from Poles under the threat of arrest.
- German merchantmen were encouraged to settle in Polish territories.
- Tax incentives and beneficial financial arrangements were proposed to German officials and clerks if they would settle in Polish inhabited provinces.
The creation of the Commission stimulated Poles to take countermeasures, that gradually turned into a competition of the Polish minority against the German state with Poles running their own settlement banks and settlement societies, resulting in a "battle for soil" (Kampf um den Boden). In 1888 Teodor Kalkstein founded Bank Ziemski, supported by Poles from Austrian Galicia region. 1894 saw Polish intellectuals in cooperation with Polish farmers founding Spólka Rolników Indywidualnych. Ignacy Sikorski founded Bank Parcelacyjny in 1896. From 1890 till 1912 Polish enterprises, banks and associations grew in number and strength providing Poles with defence against the Germanisation of their land. The efforts to Germanise the region in fact strengthened the Polish nationalist movement and united Polish nationalism, Catholicism and cultural resistance among the Poles in Pomerania, Masuria and Silesia. For the Settlement Commission, these countermeasures led to a decreasing availability of purchasable Polish-owned land, in 1895 and all years following 1898, the vast majority of estates was purchased from Germans instead of Poles, and since 1902, the commission was able to acquire land from Poles "only rarely and only through a middleman".
Numerous initiatives proved to be more elastic and efficient then the large centralised German bureaucracy. A social understanding has risen among the Polish population that led to abandoning the class differences in order to defend national existence - the rich helped the poor to perform better in economy and were supported by the clergy in their actions. Rich nobility often sold their artistic heritage to invest in banking and financial enterprises, or to buy more land for Poles. This was viewed as moral and ethical behavior among the Polish population. Some Polish nationalists accused the Settlement Commission of being run by Germans and Jews, and distributed a leaflet in 1912 that warned "any Pole who buys from Jews and Germans undermines the existence of the Catholic Church and the Fatherland." Local newspapers attempted to intimidate residents who purchased goods from German and Jewish merchants by publishing their names in the paper and accusing them of "betray[ing]...their country."
As a result, the German initiative created the very thing it tried to eliminate in the first place, a Polish national awakening in the Greater Poland region (province of Posen) and feeling of Polish national unity. Thus, faced with the inability to Germanise the Polish provinces by economic means led the German leaders and thinkers to consider pursuing extraordinary means. Catherine Epstein named Polish resistance to German methods as strengthening Polish nationalism and notes the similarity of Commission actions to the Nazis
First World War
Even before the First World War some Germans like Hans Delbrück or Chancellor Bernhard von Bülow proposed expelling Poles from eastern territories of Germany. With the coming of the war, those ideas begun to take real and determined form in the shape of plans to be realised after German victory and as consequence hegemony of Central and Eastern Europe. The idea of extraordinary measures was the result of the failed economic attempt to Germanise Polish provinces. Heads of the Settlement Commission were among the architects and supporters of those plans. The president of the Settlement Commission, Gense, was one of the chief supporters and planners of the so-called "Polish Border Strip" that envisioned expelling circa 2 million non-Germans (chiefly Poles and Jews) from 30,000 square kilometers of the would-be annexed territories from Congress Poland, which would then become Germanised. The Poles remaining in Germany who would refuse to become Germanised were to be "encouraged" to move to a planned German-run Polish puppet state established from the remains of Congress Poland.
The Settlement Commission's goal to Germanise Polish territories failed and with the fall of German Empire in 1918 (at the end of World War I), the Commission ceased to function by 1924. In 1919 its headquarters were taken over by Polish state as well as most of its territory. 3.9% (18,200 ha.) of all the land purchased remained in the hands of the Germans within the new borders of Germany. The Germanisation policies resulted in strong measures against the German settlers by the Polish state after World War I. The Polish state refused to recognize the ownership rights of most of the German settlers, about half of whom fled or were driven out of Poland. These actions of the Polish state were condemned by the Permanent Court of International Justice, ruling out in 1923 "that the position adopted by the Polish Government [...] was not in conformity with its international obligations.". By 1918, the total ethnic Polish population was greater than when the Commission began operations. Between 1918 and 1939, the German population in these areas declined by another 70%, and the land owned by Germans by 45%.
Influence on Nazism
Prussian policies of settlement and forced assimilation were an influence for German Nazi thinkers during their war in the East  Their plans were a renovation of the idea, this time however rather than colonize just the land purchased by Prussian Settlement Commission, Poles would be ethnically cleansed and murdered, and German colonists would occupy their place. The Nazis planned also to form a Reich Settlement Commission to coordinate all internal colonization within German Reich, which was to be based on Prussian Settlement Commission. The plan was laid out by Nazi official Curt von Gottberg, who presented it to Himmler, and as reward was appointed as Land Registry Chief in Prague in June 1939
- Ethno-nationality, Property Rights in Land and Territorial Sovereignty in Prussian Poland, 1886-1918: Buying the land from under the Poles' feet?" by Scott M. Eddie University of Toronto
- Zimmerman, Andrew (2010). Alabama in Africa: Booker T. Washington, the German Empire, and the Globalization of the New South. Princeton University Press. pp. 93, 94. ISBN 978-0-691-12362-2. Retrieved 6 March 2012. Cite error: Invalid
<ref>tag; name "Zim" defined multiple times with different content (see the help page).
- Andrzej Chwalba - Historia Polski 1795-1918 pages 175-184, 461-463
- Bideleux, Robert; ´Jeffreys, Ian (2007). Eastern Europe: Crisis and Change. Routledge. p. 293. ISBN 0-415-36626-7. Retrieved 6 March 2012.
- Szymon Datner, 55 dni Wehrmachtu w Polsce. Zbrodnie dokonane na polskiej ludności cywilnej w okresie 1. IX. -25. X. 1939 r. (Warsaw: Wydawnictwo MON, 1967
- Land, Labor and the Origins of the Israeli-Palestinian Conflict, 1882-1914, Gershon Shafir page 159, 1996
- Historical Dictionary of Poland, 966-1945 - page 478 Jerzy Jan Lerski, Piotr Wróbel, Richard J. Kozicki - 1996
- International Review of Agricultural Economics - page 81 International Institute of Agriculture, International Institute of Agriculture Bureau of Economic and Social Intelligence, Social Intelligence - 1917
- Życie gospodarczo-społeczne w Poznaniu, 1815-1918, Czesław Łuczak Wydawnictwo Poznańskie, page 283, 196
- Ritter, Gerhard (1974). Frederick the Great: A Historical Profile. Berkeley: University of California Press. pp. 179–180. ISBN 0-520-02775-2.
It has been estimated that during his reign 300,000 individuals settled in Prussia.... While the commission for colonization established in the Bismarck era could in the course of two decades bring no more than 11,957 families to the eastern territories, Frederick settled a total of 57,475.... It increased the German character of the population in the monarchy's provinces to a very significant degree.... in West Prussia where he wished to drive out the Polish nobility and bring as many of their large estates as possible into German hands.
- "In fact from Hitler to Hans we find frequent references to Jews as Indians. This, too, was a long standing trope. It can be traced back to Frederick the Great, who likened the 'slovenly Polish trash' in newly reconquered West Prussia to Iroquois". Localism, Landscape, and the Ambiguities of Place: German-speaking Central Europe, 1860–1930 David Blackbourn, James N. Retallack University of Toronto 2007
- Wielka historia Polski t. 4 Polska w czasach walk o niepodległość (1815-1864). Od niewoli do niepodległości (1864–1918) Marian Zagórniak, Józef Buszko 2003 page 186
- Scott M. Eddie, "Ethno-nationality and property rights in land in Prussian Poland, 1886-1918, Buying the land from under the Poles' feet?" in S. Engerman, Land rights, ethno-nationality and sovereignty in history, 2004, p.56, 
- Engerman, Stanley; Metzer, Jacob (2004). Land Rights, Ethno-nationality and Sovereignty in History. Taylor & Francis. p. 7. ISBN 978-0-203-07371-1.
- Scott M. Eddie citing Grzesś 1979:202, "Ethno-nationality and property rights in land in Prussian Poland, 1886-1918, Buying the land from under the Poles' feet?" in S. Engerman, Land rights, ethno-nationality and sovereignty in history, 2004, p.56, 
- "He has taught that it is the duty of Germany to use all the power of the State for crushing and destroying the Polish language and nationality; the Poles in Prussia are to become Prussian, as those in Russia have to become Russian. A hundred years ago the Polish State was destroyed; now the language and the nation must cease to exist." Bismarck and the Foundation of the German Empire by James Wycliffe Headlam 1899
- "If we want to exist, we have to exterminate them; the wolf can also not help if he was created by God and nevertheless he is being shot whenever one sees the opportunity" The Immigrant Threat Leo Lucassen University of Illinois Press, 2005 page 60
- Imannuel Geiss, Der polnische Grenzstreifen 1914-1918. Ein Beitrag zur deutschen Kriegszielpolitik im Ersten Weltkrieg, Hamburg/Lübeck 1960
- Martin Kitchen, A History of Modern Germany, 1800-2000 Blackwell Publishing 2006, page 130
- Meyers Großes Konversations-Lexikon, 6. Auflage 1905-1909, online at
- Volker R. Berghahn (2005). Imperial Germany, 1871-1918: Economy, Society, Culture, And Politics. Berghahn Books. p. 106. ISBN 978-1-84545-011-3.
- Blanke, Richard (1993). Orphans of Versailles: The Germans in Western Poland, 1918-1939. University Press of Kentucky. p. 51. ISBN 978-0-8131-1803-1.
- Andrzej Chwalba - Historia Polski 1795-1918 page 461
- Jochen Oltmer, Migration und Politik in der Weimarer Republik, p.142, 2005, ISBN 3-525-36282-X
- Alabama in Africa:Booker T. Washington, the German Empire, and the Globalization of the New South Andrew Zimmerman, page 100
- Andrzej Chwalba - Historia Polski 1795-1918 page 461
- Walter de Gruyter, Gesamtausgabe: Innere Kolonisation in Preussen; soziologische Studien und Kritiken erste Sammlung; Schriften 1923, 2006, p.20, ISBN 3-11-015847-7, ISBN 978-3-11-015847-2
- Walter de Gruyter, Gesamtausgabe: Innere Kolonisation in Preussen; soziologische Studien und Kritiken erste Sammlung; Schriften 1923, 2006, p.19, ISBN 3-11-015847-7, ISBN 978-3-11-015847-2
- Historia 1789-1871 Page 224. Anna Radziwiłł and Wojciech Roszkowski.
- Leszek Belzyt: Sprachliche Minderheiten im preußischen Staat 1815-1914. Marburg 1998, S.17
- Leszek Belzyt: Sprachliche Minderheiten im preußischen Staat 1815-1914. Marburg 1998, S.17f. ISBN 3-87969-267-X
- Todd M. Endelman (1997). Comparing Jewish Societies. University of Michigan Press. p. 140. ISBN 978-0-472-06592-9.
- Brockhaus Kleines Konversations-Lexikon, 1911, online at
- Germany and Poland: from war to peaceful relations, Władysław Wszebór Kulski, page 24, Syracuse University Press, 1976
- John Komlos; Scott McNeil Eddie (1997). Selected Cliometric Studies on German Economic History: Edited by John Komlos and Scott Eddie. Franz Steiner Verlag. p. 156. ISBN 978-3-515-06899-4.
- Epstein, Catherine (2010). Model Nazi. Oxford University Press. ISBN 978-0-19-161384-5. Retrieved 6 March 2012.
- Hostages of Modernization, ed. Herbert A. Strauss, 1993 page 35
- Settlers of German Origin in Poland, Advisory Opinion, 1923 P.C.I.J. (ser. B) No. 6 (Sept. 10) Archived 2013-02-09 at Archive.is
- Blanke, Richard (1993). Orphans of Versailles: The Germans in Western Poland, 1918-1939. University Press of Kentucky. p. 240. ISBN 978-0-8131-1803-1.
- German Colonialism: Race, the Holocaust, and Postwar Germany Volker Langbehn, Mohammad Salama page 60 Columbia University Press 2011
- The SS: A History 1919-45 Robert Lewis Koehl Tempus, page 134, 2005
- RKFDV: German resettlement and population policy, 1939-1945: a history of the Reich Commission for the Strengthening of Germandom, page 43, Harvard University Press
- John Komlos; Scott McNeil Eddie (1997). Selected Cliometric Studies on German Economic History: Edited by John Komlos and Scott Eddie. Franz Steiner Verlag. p. 156. ISBN 978-3-515-06899-4.
- Blanke, Richard (1993). Orphans of Versailles: The Germans in Western Poland, 1918-1939. University Press of Kentucky. p. 51. ISBN 0-8131-3041-7.
- Volker Rolf Berghahn (2005). Imperial Germany, 1871-1918: Economy, Society, Culture, and Politics. Berghahn Books. p. 106. ISBN 978-1-84545-011-3.