Onillion Family History

You can see how Onillion families moved over time by selecting different census years. The Onillion family name was found in the USA in 1880. In 1880 there were 7 Onillion families living in Louisiana. This was 100% of all the recorded Onillion's in USA. Louisiana had the highest population of Onillion families in 1880.

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