Notes:
Monroe's mother was Leal M. Wagner, b. 1908. The name of his father is unknown and it might not be Mumma. He was adopted by George and Minnie Mumma and raised by them.
1930 Census, PA, Dauphin Co., W. Hanover Twp., ED 22-113, p. 199, 14 April
Mumma, George M., head, m, 46, married age 29, b. PA / PA / PA, occ: laborer in Saw Mill
" Minnie M., wife, f, 36, married age 18, b. PA / PA / PA
Wagner, Leal M., neice, f, 22, single, b. PA / PA / PA
Mumma, John H., m, father, 75, widow, b. PA / PA / PA
" , Monroe W., grandson, m, 4 4/12, b. PA / PA / PA
Ramsey, Thomas W., grandson, m, 1 10/12, b. PA / PA / PA
1940: West Hanover, Dauphin, Pennsylvania
George Mumma, head, 57
Minnie Mumma, wife, 47
Monroe Mumma, son, 14