Threff Family History

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

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