UNION, P.V., in town of same name, Rock county, being town 4 N., of range 10 E.   [Source: Wisconsin Gazetteer by John Warren Hunt; ©1853 Beriah Brown, Printer, Madison; p. 220; Courtesy of Lori]

UNION, a post-village in the above township, 22 miles S. by E. from Madison.   [Source: The New and Complete Gazetteer of the United States by Thomas Baldwin and J. Thomas, M.D., ©1854 Lippincott, Grambo & Co., Philadelphia, PA; p. 1174; Courtesy of Kathy Lenerz]