Trefois Family History

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

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