Notes:
Data source is Norman Bernard "Bernie" Cline. E-mail nbcline@msn.com
Some census data by Doug Mumma, doug@mumma.org
1880 Census, MD, Baltimore, Precinct 1, District 11, Page 414C
Mumma, David F., 35, farmhand, b: MD/PA/MD
" , Mary L., 26, wife, house keeping, b: MD/PA/PA
" , Archie D., 1, son, b: MD/PA/PA
" , Lydia, 18, single, cousin, house work, b: MD/PA/PA
" , George, 22, single, cousin, laborer, b: MD/PA/PA
1910 Census, MD, Baltimore Co., 4th Prec., 3rd district, ED 13, 7 May 1910
Markley, William, head, 42, m1 23 yrs, b. MD/Germany/Germany, manager general farm
" , Lydia, wife, 48, m1 23 years, 6 children, 6 living, b. MD/PA/PA
" , John, son, 21, single, b. MD/MD/MD, labor general farm
" , Dorothy, 20, single, b. MD/MD/MD
" , Mary, dau, 11, single, b. MD/MD/MD
" , Laura, dau, 8, single, b. MD/MD/MD
" , Gladys, dau, 6, single, b. MD/MD/MD
" , William, Jr., son, 4, single, b. MD/MD/MD
1920 Census, MD, Baltimore Co., 3rd district, Pikesville., p. 170 - Old Court Road
Markley, William S., head, renter, 52, b. MD/Germany/Germany, laborer on farm
" , Lydia, wife, 57, b. MD/PA/PA
" , John, son, 30, single, b. MD/MD/MD, laborer dry goods
" , Mary L, dau, 20, single, b. MD/MD/MD
" , Gladys L., dau, 15, single, b. MD/MD/MD
" , William S., Jr., son, 13, single, b. MD/MD/MD
1930 Census, MD, Baltimore City, 27th Ward, 5211 Elmer Avenue
Markley, William S., head, has radio, $37.50 rent, 65, married @ age 20, b. Md/Ger/Ger, blacksmith
" , Lydia, wife, 69, married age 23, b. MD/PA/PA
" , John E, son, 40, single, b. MD/MD/MD, salesman sporting goods store
------------- NEXT DOOR at 5213 Elmer Avenue ----------------
" , Charles M, head, has radio, $38 rent, 43, m @ age 20, b. MD/MD/MD conductor street car
" , Lucy, wife, 40, m @ age 16, b. MD/MD/Germany
Smith, Evelyn L., dau, 20, m. @ age 15, b. MD/MD/MD
" , Richard A., son-in-law, 26, m. @ age 21, b. MD/MD/MD laborer in drug store
" , Richard Jr., grandson, 3 6/12, b. MD/MD/MD
" , Stanley C., grandson, 1 3/12, b. MD/MD/MD