Coollahan Family History

You can see how Coollahan families moved over time by selecting different census years. The Coollahan family name was found in the USA in 1880. In 1880 there were 5 Coollahan families living in Maryland. This was 100% of all the recorded Coollahan's in USA. Maryland had the highest population of Coollahan families in 1880.

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