Cosnahan Family History

You can see how Cosnahan families moved over time by selecting different census years. The Cosnahan family name was found in the USA, and the UK between 1880 and 1920. The most Cosnahan families were found in USA in 1880. In 1891 there were 2 Cosnahan families living in Isle of Man. This was 100% of all the recorded Cosnahan's in United Kingdom. Isle of Man had the highest population of Cosnahan families in 1891.

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