Beverly, According to www.exonumia.com/art/society.htm "AHTA: Anti-HorseThief Association, later became ATA. Although formed originally about 1863 as a protective association, it later became a Fraternal organization, with a Ladys Auxillary. It was in the midwest, having been formed in Missouri and eventually covered 16 states. The ATA still exists today. Badges exist." You also might check out www.historyoklahoma101.net/ahtanp.htm for more information and try Google and Dogpile to see what they might have. Good Luck. Caroline