In the 1820 census, Zeno Remington is head of household in Brutus, Cayuga Co., NY. There are 2 males under 10, 1 male 26-44, 1 female under 10, and one female 25-44. The adults are Zeno and Mary; the two boys are likely Orlando (9) and Philander (2), and the girl could be Mary (not sure of her exact age).
By 1830 Zeno is not there and assumed to have died. See his wife Mary for notes.
I have made an assumption that Theodore is a son in this family, based on a few points: 1) he named a son Zeno; 2) his birth year range and location place him here; and 3) Theodore and Philander are both mentioned in a land assessment as grantees Jan 1849.