Ketcham was elected as a Republican from Michigan's 4th congressional district to the 67th United States Congress and to the five succeeding Congresses, serving from March 4, 1921, to March 3, 1933.
Ketcham was selected as a Republican representative from Michigan's 4th congressional district to serve in the 67th United States Congress and the following five congresses, occupying office from March 4, 1921, to March 3, 1933.