O'neilly Family History

You can see how O'neilly families moved over time by selecting different census years. The O'neilly family name was found in the USA, and Scotland between 1861 and 1920. The most O'neilly families were found in USA in 1880. In 1880 there were 11 O'neilly families living in Texas. This was about 92% of all the recorded O'neilly's in USA. Texas had the highest population of O'neilly families in 1880.

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