O'leary Family History

You can see how O'leary families moved over time by selecting different census years. The O'leary family name was found in the USA, the UK, Canada, and Scotland between 1880 and 1920. The most O'leary families were found in USA in 1880. In 1891 there was 1 O'leary family living in London. This was 100% of all the recorded O'leary's in United Kingdom. London had the highest population of O'leary families in 1891.

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