Sir Frederick Grant Banting was a Canadian scientist and doctor, whose research led to the discovery of insulin to treat diabetic patients.
Frederick Douglass, a former slave and eminent human rights leader in the abolition movement, was the first black citizen to hold a high U.S. government rank.
Musician Frederick "Toots" Hibbert helped define reggae with his band Toots and the Maytals. Their 2004 album, True Love, won a Grammy in 2005.
Landscape architect Frederick Law Olmsted helped design many U.S. public parks. His first project was Central Park in New York City.