Oallan Family History

You can see how Oallan families moved over time by selecting different census years. The Oallan family name was found in the USA in 1920. In 1920 there was 1 Oallan family living in Illinois. This was 100% of all the recorded Oallan's in USA. Illinois had the highest population of Oallan families in 1920.

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