Special Orders, No. 55.
HEADQUARTERS OF THE ARMY,
6. By direction of the President, Brevet Major-General Adelbert Ames, lieutenant-colonel Twenty-fourth United States Infantry, is hereby assigned to command the Fourth Military District, according to his brevet rank.
By command of General Sherman:
E. D. TOWNSEND,
Ulysses S. Grant, Executive Order Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/203454