Nobel Media AB
The Nobel Prize: Frederick G. Banting Biographical
At this site from The Nobel Foundation you can read about Frederick Grant Banting's work in the medical field, specifically his discovery of insulin, a discovery which earned him the 1923 Nobel Prize, a prize he shared with John James...
University of California
University of California: Sir Frederick Grant Banting
This site from the University of California provides a bulleted list biography of his life. This site does not go into detail about the discovery of extracting insulin, but provides some basic information.