Union general whose cavalry command finally blocked Lee’s escape at Appomattox. War-dated handwritten endorsement on a one page document, 7.75 x 10, dated March 30, 1863, regarding “services rendered as clerk in Ordnance office,” which has been signed at the conclusion by Martin S. Williamson. Endorsed by Sheridan in the middle of the document, “Approved, P. H. Sheridan, Maj. Genl.” In fine condition, with two horizontal folds, expected notations and some scattered light soiling. R&R COA.