Oncey Family History

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

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