O'niell Family History

You can see how O'niell families moved over time by selecting different census years. The O'niell family name was found in the USA, the UK, and Scotland between 1880 and 1920. The most O'niell families were found in USA in 1880. In 1880 there were 21 O'niell families living in Illinois. This was about 13% of all the recorded O'niell's in USA. Illinois and 1 other state had the highest population of O'niell families in 1880.

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