Ocallayhan Family History

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

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