Onckillop Family History

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

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