Onagan Family History

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

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