There many Greenhows who are famous in some way.
John Greenhow was born in England and later settled in Williamsburg, Virginia in the 1750's and started a trading store. He even had a schooner, named "The Robert" that went up and down the James river. His store is one of the restored buisnesses in colonial Williamsburg to this day.
More on John: http://www.history.org/almanack/people/bios/biogree.cfm
Rose O'neal Greenhow married into the Greenhow name and later became a confederate spy during the Civil War.
More on Rose: http://scriptorium.lib.duke.edu/greenhow/
OTHER GREENHOW INFORMATION
Family Story for Kyle W Greenhow
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