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Where is the Leffler family from?
You can see how Leffler families moved over time by selecting different census years. The Leffler family name was found in the USA, the UK, Canada, and Scotland between 1840 and 1920. The most Leffler families were found in USA in 1880. In 1911 there were 38 Leffler families living in Ontario. This was about 60% of all the recorded Leffler's in Canada. Ontario had the highest population of Leffler families in 1911.
Use census records and voter lists to see where families with the Leffler 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, Leffler life expectancy was at its lowest point in 1951, and highest in 2003. The average life expectancy for Leffler in 1944 was 30, and 73 in 2004.