Rainham Builders
Family: Clarence S. Davidson / Sophia Nitchie Cobb (F212378)
Oliver Ellsworth Cobb (1833-1891) 
|
Cornelia Whitney Polhemus (1839- ) |
Jeanie Polhemus Cobb (1861-1942)  |
| Henry Everston Cobb (1863-1943) |
| Abraham Polhemus Cobb (1864-1932) |
| Sophia Nitchie Cobb (1868- )
|
| Rulif Davidson (1896- ) |
| Cornelius Whitney Davidson (1902- ) |