Last in class was meaningless. He was a Brevet. And was naturally demoted when the Army wound down after the war. George McClelland was second in his class. US Grant was 21 out of 39. MacArthur was first in his class and was a dud except for his postwar service in occupation Japan.
And don’t worry Mr. Field Grade Zero, none of your business, but Marines, 0311, 0321, combat (not the best, not the worst)
And you still aren’t fit to shine Custer’s boots. Go away ring knocker.
Envy looks good on you.