Notes:
1880 Census, Middletown, Butler, Ohio, United States
Self Florence Mumma, 21 widow, b: OH
Son Harry Mumma, 3, b: OH
Son Charles Mumma, 0, b: OH
Florence met Edward (Edgar) Thompson in Butler County whom she married in 1894. They moved to the Williamsport, Lycoming County, Pennsylvania shorthly after they were married and she had 3 additional children with him. Shortly before 1900, migrated back to Butler County, OH, but her oldest son, Harry, remained in Lycoming County, PA where he married and raised his family.
1900 Census, PA, Lycoming Co., Williamsport p. 265
Gundrum, Edward, head, b. Dec 1852, 47, b. PA/PA/PA, chair builder
Mumma, Maysie, dau, b: Jun 1879, 20 b, PA/PA/PA
" , Harry D., son-in-law, Nov 1877, 22, b. OH/OH/OH, clerk
1910 Census, PA, Lycoming Co., Williamsport City, p. 86
Mumma, Harry B., head, 32, m. 10 yrs, b. OH/OH/OH, salesman hat store
" , Mazie, wife, 29, m 10 yrs, 1 child, 1 living, b PA/PA/PA
" , Alice, dau, 9, single, b: PA/OH/PA
1930 Census, PA, Lycoming Co., 3rd Ward, South Williamsport Borough,p. 199
Mumma, Harry D., head, rents $40, 51, m age 21, b: OH/OH/OH, manager factory
" , Maysie E., wife, 48, 1st m. age 19, b. PA/PA/PA
Even though Maysie provided the death information, she was wrong in identifying Harry's father. It was Samuel Mumma. David was Harry's grandfather.