Fanning's Illustrated Gazetteer of the United States.... (New York: Phelps, Fanning & Co., 1853), 182.
LA FOURCHE INTERIOR PARISH, situated in the southeast part of Louisiana, with the gulf of Mexico on the south. Area, 1,100 square miles. Face of the country low and flat; soil marshy, except along the streams. Seat of justice, Thibodeauxville. Pop. in 1810, 4,467; in 1820, 3,755; in 1830, 5,503; in 1840, 7,303; in 1850, 9,533.