The death record of my great grandfather gives his parents as Mary Doty & William Thorn. Have found this family on the 1870 18th Ward Brooklyn, Kings, NY census: William Thorn age 52 b NJ Ann !!!!! age 58 b NY George (son) age 21 b NY (middle name Townsend) Also in household are: Alvin Doty age 65 b NY Townsend Doty age 39 b NY Isaac Doty age 16 Did Mary die? And he married possibly her older sister?Is Alvin perhaps brother?(Alvin Doty was a big name in the early 1800s in Green Co., NY) Does anyone have a clue?Please?