Mine Creek, and the Marais des Cygnes, ending the last Confederate threat in the West. He was injured by a fall in October 1864. In 1864 and 1865, he instituted a policy of amnesty, granting parole to Confederate prisoners on condition they go up the Missouri River to the Dakota and Montana Territories. This resulted in preventing many of the remnants of Price's army from becoming bushrangers, like Quantrill, and also resulted in Missouri Confederates migrating to the goldfields of the Montana Territory. On April 10, 1866, President Andrew Johnson nominated Pleasonton for appointment as a brevet brigadier general in the regular army for the campaign in Missouri, to rank from March 13, 1865, and the U.S. Senate confirmed the appointment on May 4, 1866 (and July 14, 1866, after changes in the date of rank for brevet appointments for non-field service). On July 17, 1866, President Johnson nominated Pleasonton for appointment as a brevet major general in the regular army for his overall conduct in the war, to rank from March 13, 1865, and the U.S. Senate confirmed the appointment on July 23, 1866. Postbellum career After the war, although Pleasonton had achieved the honorary rank of brevet major general in the regular army, he was mustered out of the volunteer service with the permanent rank of major of cavalry. Because he did not want to leave the cavalry, Pleasonton turned down a lieutenant colonel in the infantry, and soon became dissatisfied with his command relationship to officers he once outranked. Pleasonton resigned his commission in 1868, and was placed on the Army's retired list as a major in 1888. As a civilian, he worked as United States Collector of Internal Revenue and as Commissioner of Internal Revenue under President Ulysses S. Grant, but he was asked to resign from the Bureau of Internal Revenue (now the Internal Revenue Service) after he lobbied Congress for the repeal of the income tax and quarreled with his superiors at the Treasury Department. Refusing to resign, he was dismissed. He served briefly as the president of the Terre Haute and Cincinnati Railroad. In an 1895 interview with sculptor James Edward Kelly, Pleasonton claimed he had been offered command of the Army of the Potomac. (A subsequent interview with Gen. James F. Wade indicated that this offer came in a meeting in Washington some time after Gettysburg.) Pleasonton told Kelly that he "wasn't