O' brien Family History

You can see how O' brien families moved over time by selecting different census years. The O' brien family name was found in the USA between 1880 and 1920. The most O' brien families were found in USA in 1880. In 1880 there were 27 O' brien families living in New York. This was about 38% of all the recorded O' brien's in USA. New York had the highest population of O' brien families in 1880.

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