Notes:
Single - never married. died in an auto accident.
His death certificate states that his father was born in PA, which is in error. He was born in Brunswick, Germany
1870 Census, PA, Lancaster Co., Dist 213 East Lampeter Twp., p. 21
Mummy, Frederick, 38, laborer, $200 personal, b. Germany
" , Johanna, 37, keeping house, b. PA, cannot write
" , Mary L., 15, f, b. PA, cannot write
" , Christian, 13, m, b. PA <=== Error , This is Christianna who is female
" , Margaret, 8, f, b. PA
" , Emma, 5, f, b. PA
" , Henry H., 4, m, b. PA
" , Jacob, 2/12, m, b. PA April
1880 Census, PA, Lancaster Co., East Lampeter Twp., ED 143
Mumma, Fred, 48, laborer, b. PA (?)
" , Joanna, 45, wife, keeping house, b. PA
" , Elizabeth, 20, dau, at home, b. PA
" , Mary, 23, dau, at home, b. PA
" , Jacob, 10, son, at home, b. PA
" , George, 8, son, at home, b. PA
1900 Census, PA, Lancaster Co., Lancaster City, ED 49, 122 S. Arch Street
Mumma, Joanna, head, Nov 1832, 66, widow, 8 children, 6 living, b. PA/PA/PA, Laundry
" , Margaret, dau, May 1862, 38, single, b. PA
" , Jacob, son, March 1870, 30, b. PA, day laborer
1910 Census, PA, Lancaster Co., Lancaster city, Ward 6, Ed 76
Willdrama, Jacob, head, 46, m1,19 yr, b. Germany/Germany/Germany, occ laborer in iron mill
" , Annie C, wife, 51, wife, m1, 19 yr, 1 child, 1 living, b: PA/Germany/PA
Mumy, Jacob, 38, brother-in-law, single, b: PA/Germany/PA, occ laborer in iron mill