Oao Family History

You can see how Oao families moved over time by selecting different census years. The Oao family name was found in the USA, and Scotland between 1861 and 1880. The most Oao families were found in USA in 1880. In 1861 there was 1 Oao family living in Caithness. This was 100% of all the recorded Oao's in Scotland. Caithness had the highest population of Oao families in 1861.

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