Theilsu Family History

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

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