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Where is the Ohlsen family from?
You can see how Ohlsen families moved over time by selecting different census years. The Ohlsen family name was found in the USA, the UK, and Scotland between 1880 and 1920. The most Ohlsen families were found in the USA in 1880. In 1880 there were 38 Ohlsen families living in Illinois. This was about 26% of all the recorded Ohlsen's in the USA. Illinois and 1 other state had the highest population of Ohlsen families in 1880.
Use census records and voter lists to see where families with the Ohlsen surname lived. Within census records, you can often find information like name of household members, ages, birthplaces, residences, and occupations.