Notes:
Data source is Michele Loraine Mumma Stinmetz
Data researcher is Doug Mumma, doug@mumma.org
1900 Census, PA, Lancaster Co., Warwick Twp., p. 191
Mumma, Josiah, head, Nov 1844, 55, m 31 yrs, b. PA/PA/PA, Farmer
" , Sarah, wife, Feb 1850, 51, m 31 yrs, 4 children, 3 living, b. PA/PA/PA
" , Jacob, son, Oct 1882, 17, single, b. PA/PA/PA, day laborer
----- next door -------
Mumma, John, head, Feb 1874, 26, m 7 yrs, b. PA/PA/PA, cigarmaker
" , Lizzie A., wife, Jan 1872, 28, m 7 yrs, 3 children 3 living, b. PA/PA/PA
" , Della May, dau., Apr 1894, 6, single, b PA
" , Leroy G., son, Nov 1896, 3, single, b. PA
" , Margie Irene, dau, Mar 1899, 1, single, b. PA
1910 census, PA, Lancaster Co., Warwick Twp.
Mumma, John, 36, head, m1 16 yrs ago, b PA / PA / PA
" , Lizzie, 38, wife, m1 16 yrs ago, 2 children, 1 living, b. PA / PA / PA
" , Leroy, 13, son, single, b. PA,
----- next door ---
Gass, William, 66, m1 45 yrs ago, b. PA / PA / PA
" , Susan, 66, m1 45 yrs ago. b. PA / PA / PA
NOTE - John's father and brother are living a few doors away.
1920 census, PA, Lancaster Co., Warwick Twp.
Mumma, John L., 46, head
" , Lizzie, 48, wife, married
" , Della M., 25, dau, single
" , LeRoy G., 22, son, single
" , Margaret, 20, dau, single
" , William G., 14, son, single
" , Lester G., 10, son, single
Cooper, Grace E., 3 8/12, granddaughter (likely the child of Della or Margaret)
Note: The 1910 census only lists one child, yet the 1920 census suggests that there should have been 3 children listed. Were the other 2 children (Della and Margaret) adopted between 1910-1920? Have not found the family in the 1900 census.
1930 census, PA, Lancaster Co., Warwick Twp., ED 36-120
Mumma, John L, 56, m. at age 20, b. PA / PA / PA, occ: laborer - road contractor
" , Lizzie, wife, 58, m. at age 21, b. PA / PA / PA
" , Margie, dau, 31, single, b. PA
" , Lester, son, 23, single, b. PA
Cooper, Grace, grand-daughter, 13, b. PA (probably the daughter of Margie)
Mumma, Leroy, son, 33, m. at age 32, b. PA occ: cigar maker
" , Miriam, dau-in-law, 22, m. at age 22, b. PA