Onillian Family History

You can see how Onillian families moved over time by selecting different census years. The Onillian family name was found in the USA in 1880. In 1880 there was 1 Onillian family living in Louisiana. This was 100% of all the recorded Onillian's in USA. Louisiana had the highest population of Onillian families in 1880.

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