O'hallorn Family History

You can see how O'hallorn families moved over time by selecting different census years. The O'hallorn family name was found in the USA in 1880. In 1880 there were 2 O'hallorn families living in New Jersey. This was 100% of all the recorded O'hallorn's in USA. New Jersey had the highest population of O'hallorn families in 1880.

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