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Where is the Hefferan family from?
You can see how Hefferan families moved over time by selecting different census years. The Hefferan family name was found in the USA, the UK, Canada, and Scotland between 1840 and 1920. The most Hefferan families were found in USA in 1880. In 1911 there were 10 Hefferan families living in Ontario. This was about 91% of all the recorded Hefferan's in Canada. Ontario had the highest population of Hefferan families in 1911.
Use census records and voter lists to see where families with the Hefferan surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.
Between 1948 and 2003, in the United States, Hefferan life expectancy was at its lowest point in 1991, and highest in 2002. The average life expectancy for Hefferan in 1948 was 65, and 83 in 2003.