The following persons have served as officially appointed postmasters of the South Windsor Post Office.
James S. Watrous, 1839 - 1841 John B. Watrous, 1841 - 1843 Nathan P. Waller, 1843 - 1844 William Purdie, 1844 - 1846 Adin Coburn, 1846 - 1851The above information was obtained from "Historical Essays of Windsor, Town and Village, Broome County, New York"; compiled and edited by Marjory Hinman and Bernard Osborne, Windsor Town Historian; Published by the Town of Windsor, Broome County, New York, 1976.