American military figure (1822–1866) who served as assistant adjutant general of the Union's Army of the Potomac during the Civil War. Partly-printed DS, signed “S. Williams,” one lightly-lined page, 8 x 10, October 23, 1864. Williams, “by direction of the General-in-Chief,” signs an honorable discharge order for “Private Frederick C. Wright, 10th Massachussetts Volunteers…to enable him to accept a commission in another organization.” In fine condition, with areas of faint toning. RRAuction COA.