Charles B. Smith was a Lieutenant during the U.S. Civil War and became a close personal friend of General Mason Brayman. He was with Brayman at Camp Dennison, Ohio (where Brayman was commander) in 1863, and at Cairo, Ill. and Vicksburg, Miss. (1864). In 1866 Smith worked in a telegraph office in Chicago. His friendship with the General continued. Both Smith and Brayman became connected with the western railroads. Smith took a position with the Kansas Pacific in 1870 and later moved to Arizona Territory. Brayman worked with the Southern Pacific in the early 1870's and later became territorial governor of Idaho Territory.
From the description of The Charles B. Smith papers, 1863-1871. (US Army, Mil Hist Institute). WorldCat record id: 23822107