| Husband: | Robert MORRISON Elmer (c. 1845- ) | |
| Wife: | Sally GREGG (c. 1850- ) | |
| Children: | Mabel MORRISON Silsby (1871-1940) | |
| Name: | Robert MORRISON Elmer | |
| Sex: | Male | |
| Father: | - | |
| Mother: | - | |
| Birth | 1845 (est) | |
| Name: | Sally GREGG | |
| Sex: | Female | |
| Father: | - | |
| Mother: | - | |
| Birth | 1850 (est) | |
| Name: | Mabel MORRISON Silsby | |
| Sex: | Female | |
| Spouse: | James ELLSWORTH Drummond (1863-1940) | |
| Birth | 1871 | Braintree, Norfolk, MA, US |
| Education | Radcliffe College | |
| Occupation | organist | |
| Death | 1940 (age 68-69) | Boston, Middlesex, MA, US |