Dethlefson Family History

You can see how Dethlefson families moved over time by selecting different census years. The Dethlefson family name was found in the USA between 1880 and 1920. The most Dethlefson families were found in USA in 1880. In 1880 there were 10 Dethlefson families living in California. This was about 71% of all the recorded Dethlefson's in USA. California had the highest population of Dethlefson families in 1880.

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