O'brennen Family History

You can see how O'brennen families moved over time by selecting different census years. The O'brennen family name was found in the USA in 1880. In 1880 there were 4 O'brennen families living in New York. This was 100% of all the recorded O'brennen's in USA. New York had the highest population of O'brennen families in 1880.

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