found: NUCMC data from Maine Folklife Center, Northeast Archives of Folklore and Oral History for Nickerson, F. Folklore paper, 1963(Columbia, Me.)
found: Rand McNally comml. atlas, 1992(Columbia; town; Washington County)
found: GeoNames, algorithmically matched, 2009(ppl; 44°39ʹ29ʺN 067°46ʹ28ʺW)
found: Attwood, S.B. Length and breadth of Maine, 1946, p. 128(Columbia; Town; Washington County; settled 1770; incorp. Feb. 8, 1796 the 103rd town; parts set off to form other various towns including Columbia Falls on Mar. 25, 1863)