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Where is the Leff family from?
You can see how Leff families moved over time by selecting different census years. The Leff family name was found in the USA, the UK, Canada, and Scotland between 1861 and 1920. The most Leff families were found in USA in 1920. In 1880 there were 14 Leff families living in Pennsylvania. This was about 25% of all the recorded Leff's in USA. Pennsylvania had the highest population of Leff families in 1880.
Use census records and voter lists to see where families with the Leff surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.
In 1940, Salesman and Saleslady were the top reported jobs for men and women in the USA named Leff. 25% of Leff men worked as a Salesman and 17% of Leff women worked as a Saleslady. Some less common occupations for Americans named Leff were Proprietor and Teacher. .
Between 1956 and 2004, in the United States, Leff life expectancy was at its lowest point in 1956, and highest in 2000. The average life expectancy for Leff in 1956 was 47, and 78 in 2004.