Simpson, Simson A Scottish surname meaning ‘son of Sim’. Simon was a popular personal name prior to the Reformation in England and Scotland. There is also an English surname of similar derivation, additionally there are three places called Simpson in Devon which gave rise to such surname. In 1863 Simpson was the forty-third most numerous surname in Scotland. In 1890 Simpson was principally found in Antrim, and the estimated number of bearers was 3,360. In the United States Simpson is the 126th most numerous surname with an estimated 192,500 bearers. In England and Wales in 1996 Simpson was the 67th most numerous surname. In Scotland in 1995 Simpson was the 32nd most numerous surname.
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