Leonard was 44 years old, married with six children and probably from Lyons, Ionia County, when he enlisted for three years at Lyons on October 11, 1864, in Company C, 3rd reorganized Michigan Infantry.
He died of disease on January 8, 1868, at Murfreesboro, TN, and was buried in the National Cemetery at Stones River plot F, grave no. 2505.