1. Kerr's block map and manual of South Dakota : together with general information relating to population of counties, cities and towns, the altitude of various places, facts about resources, etc Yale Public content 1906. 2023-08-18T13:34:40Z. 2023-08-19T03:05:33Z. Kerr, Robert F. (Robert Floyd), (1850-1921), cartographer. George F. Cram, engraver and printer. English. cartographic image. Public. South Dakota.