Cosnan Family History

You can see how Cosnan families moved over time by selecting different census years. The Cosnan family name was found in the USA, and Canada between 1880 and 1920. The most Cosnan families were found in USA in 1920. In 1911 there was 1 Cosnan family living in New Brunswick. This was 100% of all the recorded Cosnan's in Canada. New Brunswick had the highest population of Cosnan families in 1911.

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