Onehan Family History

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

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