Afton, Hyde Co., SD - 1909 Business Directory This file contains a listing from "South Dakota State Business Directory", published by The Gazetteer Publishing Co., Denver, CO in 1909. This listing shows business in the town of Afton. This information transcribed by Joy Fisher, sdgenweb@yahoo.com and may be freely copied for non-profit purposes. All other rights reserved. AFTON A postoffice in Hyde county, 9 miles northeast of Highmore, the railroad point. Population 35. Houghton, M. B., postmaster.