Census 1850, by Mrs. J Arnold Simpson
Census 1860, by Mrs. J Arnold Simpson
Census 1870, by Mrs. J Arnold Simpson
Union County, N.C.: First Tax List– Anson Side, Anson Petition; First Tax List — Mecklenburg Side, Mecklenburg Petition, by A Hub Kerr
Wills (1843-1900), by Timothy Moore
Stewart Dunaway’s Historical Publications. While this collection does not currently contain any books specific to Union County at this time, you may want to search for materials on other counties.