Theilsen Family History

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

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