Gilcoyne Family History

You can see how Gilcoyne families moved over time by selecting different census years. The Gilcoyne family name was found in the USA between 1880 and 1920. The most Gilcoyne families were found in USA in 1880. In 1880 there were 4 Gilcoyne families living in Illinois. This was 100% of all the recorded Gilcoyne's in USA. Illinois had the highest population of Gilcoyne families in 1880.

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