Hernessy Family History

You can see how Hernessy families moved over time by selecting different census years. The Hernessy family name was found in the USA between 1880 and 1920. The most Hernessy families were found in USA in 1920. In 1880 there was 1 Hernessy family living in New Jersey. This was 100% of all the recorded Hernessy's in USA. New Jersey had the highest population of Hernessy families in 1880.

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