The Palmyra Massacre is an incident that took place in Palmyra, Missouri on October 18, 1862, during the American Civil War, when ten Confederate prisoners of war were executed in reprisal for the abduction of a local Union supporter, Andrew Allsman. The officer who ordered the execution, Colonel John McNeil, was later known as the "Butcher of Palmyra". He left the army in 1865, after receiving the customary promotion to brevet rank of Major General of Volunteers in recognition of his faithful service to the Union.
Disappearance of Allsman 
Andrew Allsman was a carpenter, sixty years old, and a Union patriot in a largely pro-Confederate area. A Union source describes him as a highly-respected and conscientious man who did his duty by leading Union forces to arrest local Confederate sympathizers. Palmyra City's website describes him as "a Union sympathizer who had the reputation of betraying neighbors sympathetic to the Confederacy".
Allsman was taken prisoner by Colonel Porter's forces when Porter raided Palmyra in September 1862. After several skirmishes, Porter decided that Allsman was a liability and set him free. Allsman was hesitant to leave the camp as there were several men who had family members that Allsman had informed on, so Porter allowed him to choose a detail that would see him safely to the city limits of Palmyra or to the nearest Union lines.
Allsman departed camp and was never seen again. Speculation is that he was taken into the woods in northern Marion County or southern Lewis County and shot.
On October 8, Provost Marshal William R. Strachan, acting for Colonel McNeil, published a notice in the local Union newspaper, the Palmyra Courier (see below) to Confederate Colonel Joseph C. Porter. McNeil threatened that unless Allsman was returned within ten days, ten of Porter's men held as prisoners in Palmyra and Hannibal would be executed.
Porter may never even have seen the notice, and most writers agree that Allsman had already been the victim of personal enemies among Porter's men. The Confederate colonel was therefore powerless to return him. Nevertheless, the presumed murder of Allsman was viewed as part of a pattern of extralegal behavior regarded by Porter's enemies as typical of his command, tolerated if not encouraged by the Rebel leader.
On the evening of 17 October ten prisoners were selected (five from the jail in Hannibal, five from the jail in Palmyra). None of them had any connection with the disappearance of Allsman; Willis Baker was in the Palmyra jail because his sons were said to be riding with Colonel Porter. He was also reported to have killed a Union neighbour in the previous year. All ten were executed on 18 October by a firing squad of thirty soldiers from the Second Missouri State Militia.
A Contemporary Account 
The pro-Union Palmyra, Missouri Courier gave the following report of the affair:
Saturday last, the 18th instant, witnessed the performance of a tragedy in this once quiet and beautiful city of Palmyra, which, in ordinary and peaceful times, would have created a profound sensation throughout the entire country, but which now scarcely produces a distinct ripple upon the surface of our turbulent social tide. "It will be remembered by our readers that on the occasion of Porter's descent upon Palmyra, he captured, among other persons, an old and highly respected resident of this city, by name Andrew Allsman. This person formerly belonged to the Third Missouri Cavalry, though too old to endure all the hardships of very active duty. He was a detailed kind of special or extra provost-marshal's guard or cicerone. He also make himself useful in a variety of ways to the military. Even though he was an old resident, and widely acquainted with the people of the place and vicinity, he was frequently called upon for information touching the loyalty of men, which he always gave to the extent of his ability, though acting, we believe, in all such cases with great candor, and actuated solely by a conscientious desire to discharge his whole duty to his Government. His knowledge of the surrounding area was the reason for him being called upon to act as a guide to scouting parties sent out to arrest disloyal persons. He acted in these various capacities, that he won the bitter hatred of all the rebels in this city and vicinity, and they only waited the coming of a favorable opportunity to gratify their desire for revenge." 
The opportunity came at last, when Porter took Palmyra. That the villains, with Porter's assent, satiated their thirst for his blood by the deliberate and predetermined murder of their helpless victim no truly loyal man doubts. When they killed him, or how, or where, are items of the act not yet revealed to the public. Whether he was stabbed at midnight by the dagger of the assassin, or shot at midday by the rifle of the guerrilla; whether he was hung and his body hidden beneath the scanty soil of some oaken thicket, or left as food for hogs to fatten upon, or whether, like the ill-fated Wheat, his throat was severed from ear to ear, and his body sunk beneath the wave, we know not. But that he was foully, carelessly murdered it is useless to attempt to deny.
When General McNeil returned to Palmyra, after that event, and ascertained the circumstances under which Allsman had been abducted, he caused to be issued, after due deliberation, the following notice:
"PALMYRA, MO., October 8, 1862.
"JOSEPH C. PORTER:
"SIR: Andrew Allsman, an aged citizen of Palmyra, and a non-combatant, having been carried from his home by a band of persons unlawfully arrayed against the peace and good order of the State of Missouri, and which band was under your control, this is to notify you that unless said Andrew Allsman is returned, unharmed, to his family within ten days from date, ten men, who have belonged to your band, and unlawfully sworn by you to carry arms against the Government of the United States, and who are now in custody, will be shot as a meet reward for their crimes, among which is the illegal restraining of said Allsman of his liberty, and, if not returned, presumptively aiding in his murder.
"Your prompt attention to this will save much suffering.
"W. R. STRACHAN,
"Provost-Marshal-General, District of Northeastern Missouri.
"Per order of brigadier-general commanding McNeil's column."
A written duplicate of this notice he caused to be placed in the hands of the wife of Joseph C. Porter, at her residence in Lewis County, who it was well known was in frequent communication with her husband. The notice was published widely, and as Porter was in Northern Missouri during the whole of the ten days subsequent to the date of this notice, it is impossible that, with all his varied channels of information, he remained unapprised of General McNeil's determination in the premises.
Many rebels believed the whole thing was simply intended as a scare, declaring that McNeil did not dare to carry out the threat.
The ten days elapsed, and no tidings came of the murdered Allsman. It is not our intention to dwell at length upon the details of this transaction. The tenth day expired with last Friday. On that day ten rebel prisoners, already in custody, were selected to pay with their lives the penalty demanded. The names of the men so selected were as follows: Willis Baker, Lewis County; Thomas Humston, Lewis County; Morgan Bixler, Lewis County; Herbert Hudson, Ralls County; John M. Wade, Ralls County; Marion Lair, Ralls County; Capt. Thomas A. Sidner, Monroe County; Eleazer Lake, Scotland County, and Hiram Smith, Knox County. These parties were informed on Friday evening that unless Mr. Allsman was returned to his family by 1 o'clock on the following day, they would all be shot at that hour. Most of them received the announcement with composure or indifference. The Rev. James S. Green, of this city, remained with them during that night, as their spiritual adviser, endeavoring to prepare them for their sudden entrance into the presence of their Maker. A little after 11 a.m. the next day, three Government wagons drove to the jail; one contained four and each of the others three rough board coffins. The condemned men were conducted from the prison and seated in the wagons, one upon each coffin. A sufficient guard of soldiers accompanied them, and the cavalcade started for the fatal grounds. Proceeding east to Main street, the cortege turned and moved slowly southward as far as Malone's livery stable; thence turning east, it entered the Hannibal road, pursuing it nearly to the residence of Col. James Culbertson; there, throwing down the fences, they turned northward, entering the fair grounds (half a mile east of the town), on the west side, and, driving within the circular amphitheatrical ring, paused for the final consummation of the scene.
The ten coffins were removed from the wagons and placed in a row 6 or 8 feet apart, forming a line north and south, about 15 paces east of the central pagoda or music stand, in the center of the ring. Each coffin was placed upon the ground, with its foot west and head east. Thirty soldiers of the Second Missouri State Militia were drawn up in a single line, extending north and south, facing the row of coffins. This line of executioners ran immediately at the east base of the pagoda, leaving a space between them and the coffins of 12 or 13 paces. Reserves were drawn up in line upon either bank [flank] of these executioners.
The arrangements completed, the doomed men knelt upon the grass between their coffins and the soldiers, while the Rev. R. M. Rhodes offered up a prayer. At the conclusion of this, each prisoner took his seat upon the foot of his coffin, facing the muskets which in a few moments were to launch them into eternity. They were nearly all firm and undaunted, two or three only showing signs of trepidation.
The most noted of the ten was Capt. Thomas A. Sidner, of Monroe County, whose capture at Shelbyville, in the disguise of a woman, we related several weeks since. He was now elegantly attired in a suit of black broadcloth, with a white vest. A luxurious growth of beautiful hair rolled down upon his shoulders, which, with his fine personal appearance, could not but bring to mind the handsome but vicious Absalom. There was nothing especially worthy of note in the appearance of the others. One of them, Willis Baker, of Lewis County, was proven to be the man who last year shot and killed Mr. Ezekiel Pratt, his Union neighbor, near Williamstown, in that county. All the others were rebels of lesser note, the particulars of whose crimes we are not familiar with.
A few minutes after 1 o'clock, Colonel Strachan, provost-marshal-general, and Reverend Rhodes shook hands with the prisoners, two of them accepting bandages for their eyes. All the rest refused. A hundred spectators had gathered around the amphitheater to witness the impressive scene. The stillness of death pervaded the place. The officer in command now stepped forward, and gave the word of command, "Ready, aim, fire." The discharges, however, were not made simultaneously, probably through want of a perfect previous understanding of the orders and of the time at which to fire. Two of the rebels fell backward upon their coffins and died instantly. Captain Sidner sprang forward and fell with his head toward the soldiers, his face upward, his hands clasped upon his breast and the left leg drawn half way up. He did not move again, but died immediately. He had requested the soldiers to aim at his heart, and they obeyed but too implicitly. The other seven were not killed outright, so the reserves were called in, who dispatched them with their revolvers.
It seems hard that ten men should die for one. Under ordinary circumstances it would hardly be justified; but severe diseases demand severe remedies. The safety of the people is the supreme law. It overrides all other considerations. The madness of rebellion has become so deep seated that ordinary methods of cure are inadequate. To take life for life would be little intimidation to men seeking the heart's blood of an obnoxious enemy. They could well afford to make even exchanges under many circumstances. It is only by striking the deepest terror in them, causing them to thoroughly respect the lives of loyal men, that they can be taught to observe the obligation of humanity and of law.
After the massacre, it has been claimed that Strachan spared the life of one of the intended victims (Tom Humphrey of Lewis County) in exchange for $500 paid by Humphrey's wife. Strachan is also said to have violated the chastity of Mrs. Humphrey, whether as part of the bargain or not. (Capt. Griffin Frost, quoted by Joseph A. Mudd, "With Porter in Northeast Missouri"). In 1864 Strachan was tried for the rape of Mrs. Humphrey and other offences, including misuse of funds. Found innocent of rape but guilty of embezzlement, he was sentenced to prison and was released by General William Starke Rosecrans on the grounds of persecution and an unfair trial, even though his accuser was another Union officer.
Allsman's skull 
According to James J. Fisher's column in the Kansas City Star (July 29, 1994) Andrew Allsman was observed alive September 16, 1862, in the company of two Confederate guerillas, near Troublesome Creek (in the vicinity of Steffenville, MO). In 1877, a farmer walking the creek found and later gave away a skull he thought to be Allsman's. The skull came into the possession of a Newark, MO pharmacist, who put it on display, where it attracted much attention. A man named Edward Wilson purchased it in 1890 and had it placed in a walnut chest lined with velvet. Eventually, he returned the skull to one of Allsman's daughters, living in Palmyra, who supposedly identified it and arranged for burial. Paul Davis, a journalist working for the Hannibal Courier-Post, recalls being shown a box matching this description and containing a skull said to be Allsman's by a Ralls County resident in the 1990s.
The Western Historical Manuscripts Collection at The University of Missouri-Columbia's Ellis Library has an "Account of finding skull believed to be that of Andrew Allsman.": "Facts Relating to the Palmyra Massacre," 1946 Item # 644 Hodges, T.L. and Mrs. T.L.: State Historical Society of Missouri, Typescript Collection (C0995) http://www.umsystem.edu/whmc/invent/0995.html
The Palmyra Confederate Monument Association erected a granite monument in Palmyra on February 25, 1907. The victims listed were Capt. Thomas A. Sidnor, Willis T. Baker, Thomas Humston, Morgan Bixler, John Y. McPheeters, Hiram T. Smith, Herbert Hudson, John M. Wade, Francis M. Lear and Eleazer Lake. The monument still stands outside the Palmyra courthouse. The actual site of the massacre at the old fairgrounds is currently a farm field just east of Palmyra.
References and Additional References 
- Contemporary background documents from Civil War St. Louis
- Harper’s Weekly, January 1864
- Mudd, Joseph A., With Porter in Northeast Missouri (1909)
- Sallee, Scott E. "Porter's Campaign in Northeast Missouri, 1862, Including the Palmyra Massacre." Blue & Gray 17 (February 2000): 6-12,14-16,18,20,44-51. Illus. Sidebars: "Joseph A. Mudd - With Porter in No. Missouri," p. 10; "Their Last Hours - An Account of Elder Jacob Creath, Jr.," p. 45; "Last Letters By Several of the Palmyra Condemned," pp. 46–47; "Whatever Happened to Andrew Allsman?," p. 49.
- Additional Background documents from 
- Photograph of Marion County Civil War Monument, Palmyra, Missouri