Guilfoi Family History

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

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