In the 1850 Federal Census, Thaddeus is age 55, and living in Canandaigua, Ontario Co., NY. In the household are (assumed) sons Thaddeus B., Thomas A., Martin, and Chauncey, and (assumed) daughter Eunice, plus two other individuals. In 1870 Thaddeus is age 76, still living in Canandaigua, with son Thaddeus B. and his family.