Photograph, John W. Williamson 1st Michigan Engineers Civil War
Williamson is photographed here as a 1st Lieutenant of Co. B. 1st Michigan Engineers & Mechanics in 1863. In May of 1863 he was promoted to Captain of Company B. He enlisted in September 1861 in Grand Rapids where he also resided after mustering out in 1865 , having re-enlisted in late 1864.