O halloran Family History

You can see how O halloran families moved over time by selecting different census years. The O halloran family name was found in the USA, Canada, and Scotland between 1880 and 1920. The most O halloran families were found in USA in 1920. In 1881 there was 1 O halloran family living in Renfrewshire. This was 100% of all the recorded O halloran's in Scotland. Renfrewshire had the highest population of O halloran families in 1881.

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