O'leiny Family History

You can see how O'leiny families moved over time by selecting different census years. The O'leiny family name was found in the USA in 1880. In 1880 there was 1 O'leiny family living in Maryland. This was 100% of all the recorded O'leiny's in USA. Maryland had the highest population of O'leiny families in 1880.

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