found: NUCMC data from NJ Hist. Soc. for Presbyterian clergymen's Papers, 1742-1867(Succasunna; now pt. of Roxbury Twp.; Morris County, N.J.)
found: Rand McNally comm'l atlas, 1986(Succasunna; Roxbury Twp., Morris Co.)
found: Encycl. NJ, 1983(Succasunna; village; Morris Co.; name from Lenape Indian language meaning black stone; mining area; Old Suckysunny [variant])
found: Hist. of Morris Co., 1710-1913(Succasunna; post office est. 1808; Suckysunny; Succasunny; settled by Lenape Indians; Dela. Watergap area; known for mining & racing)
found: LC manual cat.(hdg.: Succasunna, N.J.)
found: Gordon, T.F. Gazetteer of state of NJ, 1834(Suckasunny; also Succasunna)
found: GeoNames, algorithmically matched, 2009(ppl; 40°52ʹ06ʺN 074°38ʹ26ʺW)