Oneario Family History

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

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