| Year | Name | Relation to Head | Address | Age | Race | POB | Marriage | Occupation | 
|---|---|---|---|---|---|---|---|---|
| 1920 | VanDemark, Benjamin H R | Son | 5 | White | New York | Single | None | |
| 1930 | Van De Mark, Benj H | Son | Main-Ithaca-Speedsville Rd | 15 | White | New York | Single | Laborer | 
| 1940 | Van De Mark, Benjamin | Son | 799 Valley Rd | 26 | White | New York | Single | Clerk | 
| 1950 | Van De Mark, Benjamin H | Head | 815 Valley Rd | 35 | White | New York | Married | Trucking | 
| Name | Relation to Head | Address | Age | Race | POB | Marriage | Occupation | 
|---|---|---|---|---|---|---|---|
| VanDemark, Harry R | Head | 41 | White | New York | Married | Salesman | |
| VanDemark, Flora M | Wife | 38 | White | New York | Married | None | |
| VanDemark, Ruth L | Daughter | 19 | White | New York | Single | Nurse | |
| Graham, Cristy M | Mother-in-Law | 62 | White | New York | Widowed | None | 
| Name | Relation to Head | Address | Age | Race | POB | Marriage | Occupation | 
|---|---|---|---|---|---|---|---|
| Van De Mark, Harry R | Head | Main-Ithaca-Speedsville Rd | 51 | White | New York | Married | Proprietor | 
| Van De Mark, Flora | Wife | Main-Ithaca-Speedsville Rd | 48 | White | New York | Married | None | 
| Van De Mark Jr, Harry R | Son | Main-Ithaca-Speedsville Rd | 5 | White | New York | Single | None | 
| Northrup, Benj. | Boarder | Main-Ithaca-Speedsvillw Rd | 79 | White | New York | Widowed | None | 
| Name | Relation to Head | Address | Age | Race | POB | Marriage | Occupation | 
|---|---|---|---|---|---|---|---|
| Van De Mark, Harry | Head | 799 Valley Rd | 61 | White | New York | Married | Merchant | 
| Van De Mark, Flora | Wife | 799 Valley Rd | 58 | White | New York | Married | None | 
| Van De Mark Jr, Harry | Son | 799 Valley Rd | 16 | White | New York | Single | New Worker | 
| Name | Relation to Head | Address | Age | Race | POB | Marriage | Occupation | 
|---|---|---|---|---|---|---|---|
| Van De Mark, Mary M | Wife | 815 Valley Rd | 25 | White | New York | Married | None | 
| Van De Mark, Gloria J | Daughter | 815 Valley Rd | <1 | White | New York | Never Married | None | 
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