Notes:
Data source is the 1990 book, "Moomaw-Mumma-Mumaw-Mumaugh Genealogy" compiled by Robert Austin Moomaw (deceased).
1920 Census: Lancaster Ward 6, Lancaster, PA, 131 East Fredrick Street
Walter J Mumma, head, 42, b: PA, clerk ironworks
Laura Mumma, wife, 40, b: PA
Harold Mumma, son, 11, b: PA
Robert Mumma, son, 6 3/12, b: PA
1930: Census: Lancaster, Lancaster, PA, 131 E. Frederick
Laura Mumona, head, 50, widow, b: PA, kitchen work in hospital
Harold U Mumona, son, 22, single, b: PA, accountant in lineoleum factory
Robert L Mumona, son, 16, single, b: PA, no occupation.
1940: Census, Lancaster, Lancaster, Pennsylvania
Residence in 1935: Same House, 201 Clay Street,
Ella G Mumma, head, 65, widow, b: PA
Ruth L Mumma, niece, 29, single, b: PA, cashier, electric power & light Co.
Robert L Mumma, nephew, 26, single, b: PA