Denneff Family History

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

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