Notes:
1900 Census PA, Lancaster Co., Columbia Borough, ED 8, p 116 320 2nd Street
Mummaw, Peter, head, b. Dec 1852, 49, m 15 yrs, b. PA/PA/PA, iron worker
" , Mary O, wife, b. Nov 1864, 35, m 15 yrs, 2 children 2 living, p PA/PA/PA
" , James B., son, June 1885, 14, b. PA, lace worker
" , Henretta H., dau, May 1887, 13 b. PA, lace worker
1910 Census PA, Lancaster Co., Columbia Borough, ED 16, p. 81, 212 Perry Street
Mummaw, James B., Head, 24, m1 5 years, b. PA/PA/PA, printer - newspaper
" , Annie M., wife, 25, m1 5 yrs, 4 children, 3 living, b. PA/PA/PA
" , Mary B, dau, 4, single, b. PA
" , Anna, dau, 2, single, b. PA
" , Samuel, son, 1, single, b. PA
" , Peter, father, 57, m2 25 yrs, b. PA/PA/PA, laborer odd jobs
1920 Census PA, Lancaster Co., Lancaster City, 8th ward, p. 132, 36 1/2 Laurel St.
Mummaw, James B., Head, 34, b. PA/PA/PA, ? newspaper
" , Annie, wife, 34, b. PA/PA/PA
" , Mary, dau, 14, single, b. PA
" , Anna, dau, 12, single, b. PA
" , Samuel, son, 10, single, b. PA
" , Henretta, dau, 9, single, b. PA
" , Sarah, dau, 8, single, b. PA
" , Grace, dau, 6, single, b. PA
" , Clara, dau, 3 8/12, single, b. PA
" , James, son, 1 11/12, single, b. PA
" , Arthur F, son, 1/12, single, b. PA
" , Peter, father, 67, m. , b. PA/PA/PA no occupation
1930 Census PA, Lancaster Co., Lancaster City, 8th Ward, p. 231, 522 Joseph Street
Mummaw, James B, head, owner $3500, has radio, 44, m 19 yrs, b. PA/Germ/Germ, linotype operator newspaper
" , Anna, wife, 44, m 19 yrs, b. PA/PA/PA
" , Sarah, dau, 19, single, b. PA, redrawer silk mill
" , Grace, dau, 16, single, b. PA, clerk garment Co.
" , Clara, dau, 14, single, b. PA
" , James, son, 12, single, b. PA
" , Arthur, son, 10, single, b. PA
" , Harry, son, 6, single, b. PA
" , Edward, son, 4 9/12, single, b. PA