Biography of John Carlyle Southwick
John Carlyle Southwick (b. 1866, Waukegan, Illinois) was a prominent abstract business owner in Watertown, South Dakota. A key figure in local real estate, Southwick compiled a comprehensive set of title abstracts for Codington County, using a system he developed, which became widely adopted in the Northwest. He moved to Dakota Territory in 1883 and gained experience in Kingsbury County before establishing his business in Watertown in 1889. Elected register of deeds in 1893, Southwick held various public offices and was highly active in the Knights of Pythias, serving in multiple leadership roles. He also owned significant real estate, including his office building.