American World War I ace (1879–1936). His zealous ambition, overreaching bravado, and vocal criticism of the War and Navy departments following the war led to a court-martial, a guilty verdict, and prior to a suspension, his resignation from the military in 1926. DS, signed “Wm. Mitchell,” one page, 8 x 10.5, March 6, 1919. An officer’s pay voucher for the month of February 1919, during which time Mitchell was paid $189.25. Horizontal fold through signature (mild associated toning) and light document wear, otherwise fine condition. R&R COA.