This is another photo of Elvis John Brassfield. The caption says "Sept. 1921, 10 mo. on ranch, S.D." The ranch was somewhere near Fairfax, South Dakota. My only other comment would be that the device he is in looks like something that would be banned from usage in modern times.
Elvis John Brassfield (1920-2006) was the son of Thelma Sarah (Hunt) and Floyd Gipson Brassfield.