O'shaghnessy Family History

You can see how O'shaghnessy families moved over time by selecting different census years. The O'shaghnessy family name was found in the USA in 1880. In 1880 there were 3 O'shaghnessy families living in Illinois. This was about 60% of all the recorded O'shaghnessy's in USA. Illinois had the highest population of O'shaghnessy families in 1880.

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