When Erastus Watrous was born on 12 May 1812, in Hartford, Connecticut, United States, his father, Russel Watrous, was 26 and his mother, Emme Kellogg, was 28. He married Sarah Walker on 1 December 1839, in Manchester, Manchester, Ontario, New York, United States. They were the parents of at least 4 daughters. He lived in Michigan, United States in 1870 and Howell, Livingston, Michigan, United States in 1880. He died on 20 March 1881, in Livingston, Michigan, United States, at the age of 68, and was buried in Genoa Township, Livingston, Michigan, United States.
English: variant of Waterhouse . This surname is now rare in Britain.