Notes:
Data source is Richard Ray Mumma, deceased
1900 Census PA, Lancaster Co., Rapho Twp., ED 102
Mumma, Jacob, head, Feb 1869, 31, m. 8 yr, b. PA/PA/PA, painter
" , Mary, wife, Aug 1875, 24, m. 8 yr, 1 child, 1 living, b. PA/PA/PA
" , Fanny, dau., Apr 1892, 8, single, b. PA
1910 Census, PA, Lancaster Co., West Hempfield Twp., ED 55
Mumma, Jacob E., head, 41, m1 19 yr, b. PA/PA/PA, Small farmer
" , Mary H., wife, 34, m1 19 yr, 2 children 2 living, b. PA/PA/PA
" , Fannie M, dau, 18, single, b. PA
" , Allen, son, 8, single, b. PA
Miller, William, brother-in-law, 27, single, b. PA, farm laborer
1920 Census, PA, Lancaster Co., West Hempfield, ED 145
Mumma, Jacob E., head, 50, b. PA/PA/PA, small farmer
" , Mary, wife, 44, b. PA
" , Fannie, dau, 28, b. PA
" , Allen, son, 18, b. PA
Miller, Catherine, niece, 16, b. PA
" , William, brother-in-law, 38, b. PA/PA/PA, invalid
1930, Census, PA, Lancaster, East Hempfield, East Petersburg Village
Mumma, Jacob E., head, owner $5000, 60, married age 22, b PA/PA/PA, butcher meat market
" , Emma H., wife, 44, married age 37
[Note: in 1930, William H. Miller is an inmate in the Lancaster insane asylum]