O'coneil Family History

You can see how O'coneil families moved over time by selecting different census years. The O'coneil family name was found in the USA in 1880. In 1880 there were 5 O'coneil families living in Illinois. This was 100% of all the recorded O'coneil's in USA. Illinois had the highest population of O'coneil families in 1880.

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