1850 Census
Christiana Hundred, New Castle, Delaware, Page 349
Callahan, Michael, 39, a Farmer born Ireland
Callahan, Mary, 37, born in France
-, Amelia, 21, born DE
-, Joseph H., 11 y.o., born DE
-, Daniel, 15 y.o., born DE.
-, Elisabeth, 7, born DE
-, Francis (Male), 4, born DE
-, Charles, 2, born DE