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Where is the Demanche family from?
You can see how Demanche families moved over time by selecting different census years. The Demanche family name was found in the USA, the UK, and Canada between 1880 and 1920. The most Demanche families were found in USA in 1920, and Canada in 1911. In 1911 there were 30 Demanche families living in Quebec. This was 100% of all the recorded Demanche's in Canada. Quebec had the highest population of Demanche families in 1911.
Use census records and voter lists to see where families with the Demanche surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.
Between 1944 and 2004, in the United States, Demanche life expectancy was at its lowest point in 1944, and highest in 1981. The average life expectancy for Demanche in 1944 was 30, and 69 in 2004.