O'nill Family History

You can see how O'nill families moved over time by selecting different census years. The O'nill family name was found in the USA between 1880 and 1920. The most O'nill families were found in USA in 1880. In 1880 there were 6 O'nill families living in Louisiana. This was about 33% of all the recorded O'nill's in USA. Louisiana and 1 other state had the highest population of O'nill families in 1880.

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