After 1912 , Welch played professional football for the Canton Bulldogs , coached by Thorpe .
He was a member of the USA Track and Field team during the 1912 Summer Olympics , although an illness prevented him from competing .
After 1912 , member played professional football for the Canton Bulldogs , coached by Thorpe .
He was a member of the USA Track and Field team during the 1912 Summer Olympics , although an illness prevented him from competing .