Rainham Builders
Family: Robert Allan Mercer / Ferrol Leila Hartlieb (F223381)
Daniel Julius Hartlieb (1879- ) |
Christina Gossman (1882- ) 
|
Verda Mildred Hartlieb (1902-1979)  |
| Elizabeth Lovella Hartlieb (1904- ) |
| Ferrol Leila Hartlieb (1906-1976)
|
| Robert Allan Mercer (1902-1956) |