He served as the Commanding Officer of Company G until August 1864. He resigned his commission (just after the battle of Trevillian Station) citing a surgeon's certificate. Sometime thereafter, he moved back to his home state of New York (just east of Buffalo).
He died in 1910 at the age of 84. He is buried in Akron, New York. The item "Civil War CDV Union Bvt Major William T McGoffin 3rd/5th Michigan Cav, Custer's" is in sale since Monday, March 11, 2019. This item is in the category "Collectibles\Militaria\Civil War (1861-65)\Original Period Items\Photographs". The seller is "civil_war_photos" and is located in Midland, Michigan.This item can be shipped worldwide.