Hugh probably had two brothers that served in the 59th ?
James Cansler enlisted as a "cook" in Co. B of the Regiment on 10-6-62, in Madisonville, and was present with his Company thru June 1863, enduring the Siege of Vicksburg. He has no Federal parole from the surrnder of Vicksburg, James may have enlisted later in Co. K of the 40th U.S. Colored Infantry using the name, James Campbell.
Henry Cansler enlisted in Co. E of the same Regiment on 3-7-63, also in Madisonville. He was paroled at Vicksburg, which is his last record in the unit.
Glenn