↑ "United States Census, 1870," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/M8XD-HYW : accessed 03 Jan 2014), Mary Van Campan, New York, United States; citing p. , family , NARA microfilm publication M593, FHL microfilm 000552540.
Mary Van Campan, 30, John Van Campan, 3, both b. NY, and 7 female servants, all b. Ireland.