Olanaghan Family History

You can see how Olanaghan families moved over time by selecting different census years. The Olanaghan family name was found in the USA in 1880. In 1880 there were 2 Olanaghan families living in Iowa. This was 100% of all the recorded Olanaghan's in USA. Iowa had the highest population of Olanaghan families in 1880.

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