Trethart Family History

You can see how Trethart families moved over time by selecting different census years. The Trethart family name was found in the USA in 1880. In 1880 there were 10 Trethart families living in Pennsylvania. This was about 91% of all the recorded Trethart's in USA. Pennsylvania had the highest population of Trethart families in 1880.

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