O'cornnor Family History

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

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