O'hallorann Family History

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

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