Notes:
Data source is the pamphlet, "Genealogy of One Branch of the Jacob Mumma Family", written by Ellen Landis Mumma in 1970. Ellen was the sister of Harry Landis Mumma. They are also listed in "The Brenneman History", 1938 by Albert H. Gerberich, p.675. Mennonite Publishing House, Scottdale, PA. The birth date for Lizzie Stelman is incorrect, also they had 4 children, not 3 as stated, however 4 were listed. Lizze Stehman's birth date is further confirmed in the 1910 census.
1910 Census, Lancaster Co., East Hempfield Twp., ED50, house # 21
Mumma, Harry, head, m, 24, m1 for 4 years, b PA / PA / PA occ: farmer
" , Lizzie, wife, f, 24, m1 for 4 years, 2 children, 2 living, b. PA / PA / PA
" , Ethel, dau, f, 2, single, b. PA
" , Clyde, son, m, 2/12, single, b. PA
Mease, Annie, servant, f, 16, single, b. PA / PA / PA, occ: servant, private family