Notes:
Data Source was William W. Mumma. Some information was compiled in 1912 by his mother. Additional information came from the notebook of his niece, Stella M. Mumma.
Additional information by Doug Mumma
1900 Census PA, Dauphin, Harrisburg, Ward 10
Plunkett, James, head, May 1852, 48, m. 12 yrs., b. PA/Ireland/Germany Beltman heading shop
" , Hanna, wife, Jan 1835, 65, m. 12 yrs, 8 children, 4 living, b PA/PA/?
Mumma, Charles, step-son, Apr. 1865, 35, b. PA/PA/PA, occ: none
" , Katie, step-dau, Jan 1869, 31, b: PA/PA/PA
1910 Census PA Dauphin Co., Harrisburg, Ward 10, 2132 Atlas St.
Plunkett, James, head, 54, widowed, b. PA/Ireland/Germany, laborer Rail Road Co.
Mumma, Charles, step-son, 44, single, b. PA/PA/PA, nurse, private family
" , Catharine, step-dau., 38, single, b. PA/PA/PA
1920 Census PA, Dauphin Co., Harrisburg City, Ward 10, 2132 Atlas St
Mumma, Charles, head, owns, 54, single, b. PA/PA/PA, nurse private family
" , Catherine, sister, 52, b. PA/PA/PA, housekeeper private family
Plunkett, James, 65, b. PA/Ireland/PA, watchman Rail Road
1930 Census, PA, Dauphin Co., Harrisburg City, Ward 10, 2132 Atlas Street
Mumma, Charles, head, owns, $1000, 62, single, b. PA/PA/PA, murse private duty
" , Katherine, sister, 59, single, b. PA/PA/PA
1940: Harrisburg, Dauphin, Pennsylvania, 2132 Atlas Street
Charles Mumma, head, 74
Katherine Mumma, sister, 71