| Birth | 18 May 1908 | Indiana | |  | |
| Census | 15 Apr 1910 | Plymouth City Ward 1, Centre Twp., Marshall Co., IN, ED 101 Sh 13A; Margery E. McDowell, daughter, 2 (1907-08), born IN both parents born IN. | | | |
| Census | 1 Jan 1920 | Malta 2nd Ward, Phillips Co., MT, ED 239 Sh 11A; Marjorie McDowell, daughter, 11 (1908), born IN father born IN mother born MI [sic]. | | | |
| Voting Register | 1930 | 1148 N. Isabel St., Glendale, Los Angeles Co., CA; Miss Marjorie McDowell, at home. Listed by father and step-mother. | | | |
| Census | 1 Apr 1930 | Glendale City and Twp., Los Angeles Co., CA, ED 967 Sh 2A; Marjorie McDowdell [sic], daughter, 22 (1907-08), single, born IN both parents born IN, no occupation. | | | |
| Voting Register | 1938 | Glendale, Los Angeles Co.; Miss Marjorie E. McDowell, 1323 E. Windsor Road, Housekeeper, Republican. Pauline and Harold are listed at the same address this year. | | | |
| Voting Register | 1940 | Los Angeles City and County, CA; Miss Marjorie McDowell, 1534 Micheltorena St., Housekeeper, R. | | | |
| Voting Register | 1948 | Los Angeles City and County, CA; Miss Marjorie McDowell, 1563 E. 48th pl., R. | | | |
| Voting Register | 1952 | Los Angeles City and County, CA; Miss Marjorie McDowell, 1563 E. 48th pl., R. Emerson E. McDowell, Democrat, is listed at the address beside her. | | | |
| Death | 30 Oct 1984 | Orange Co., California. | |  | |
| Reference No | | 10128 | | | |