Theilson Family History

You can see how Theilson families moved over time by selecting different census years. The Theilson family name was found in the USA in 1920. In 1920 there was 1 Theilson family living in South Dakota. This was 100% of all the recorded Theilson's in USA. South Dakota had the highest population of Theilson families in 1920.

Use census records and voter lists to see where families with the Theilson surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.