Notes:
1920 Census, PA, Dauphin Co., Londonderry twp., ED 115, p. 188(?)
Household #57
Mumma, Michael V., head, owner, 54, b. PA / PA / PA, occ: foreman(?) in can(?) shops
" , Francis, wife, 55, b. PA / PA / PA
Mumma, Millard R., head, renter, 30, b. PA / PA / PA, occ: machinest in can(?) shops
" , Laura Elizabeth, wife, 35, b. PA / PA / PA
" , Enos Y., son, 8, single, b. PA
" , John H., son, 4 7/12, single, b. PA
" , Paul S., son, 6/12, single, b. PA
1930 census, PA, Dauphin Co., Londonderry Twp., ED 22-20, p. 135
Mumma, Michael, head, owner $1000, no radio, 65, m age 23, b. PA / PA / PA, occ: none
" , Fanny, wife, 65, m. age 23, b. PA / PA / PA
Mumma, Millard, head, renter $10, 41, m. age 20, b. PA / PA / PA, occ: machinest - electronic plant
" , Flora, wife, age?, m. age 24, b. PA / PA / PA
" , Enos, son, 18, single, b. PA
" , John, son, 16, single, b. PA
" , Paul, son, 9, single, b. PA
" , Ruth, dau, 8, single, b. PA
1940: Lancaster, Lancaster, Pennsylvania, East James Street
Residence in 1935: Rural, Lane, Pennsylvania
John H Mumma 24, b: PA, warper of silk
Violet L Mumma 24, b: PA
Elsie L Mumma 1, b: PA
1950 Manheim, Lancaster, Pennsylvania, USA
202 Oregon Pike,
John H Mumma, 34,Head
Violet L Mumma, 34Wife
Elsie L Mumma, 11Daughter
Michael J Mumma, 8, Son
Mirth A Mumma, 5Daughter