When Benjamin Wilcox was born in 1783, in Halifax, Windham, Vermont, United States, his father, Nathan Wilcox, was 36 and his mother, Rebecca Moon, was 31. He married Elizabeth Otis on 11 April 1811. They were the parents of at least 3 sons and 4 daughters. He died in August 1850, in Streetsboro Township, Portage, Ohio, United States, at the age of 67.