Duncausan Family History

You can see how Duncausan families moved over time by selecting different census years. The Duncausan family name was found in the USA in 1880. In 1880 there was 1 Duncausan family living in Illinois. This was 100% of all the recorded Duncausan's in USA. Illinois had the highest population of Duncausan families in 1880.

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