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Where is the Demange family from?
You can see how Demange families moved over time by selecting different census years. The Demange family name was found in the USA, and Scotland between 1880 and 1920. The most Demange families were found in USA in 1920. In 1880 there were 7 Demange families living in Iowa. This was about 26% of all the recorded Demange's in USA. Iowa had the highest population of Demange families in 1880.
Use census records and voter lists to see where families with the Demange surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.
Between 1962 and 2004, in the United States, Demange life expectancy was at its lowest point in 1967, and highest in 1983. The average life expectancy for Demange in 1962 was 54, and 76 in 2004.