Oneilla Family History

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

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