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en.wikipedia.org/wiki/Buddy_Holly

Charles Hardin Holley (September 7, 1936–February 3, 1959), better known as Buddy Holly, was an American singer, songwriter, and a pioneer of Rock and Roll. The change of spelling of Holley to Holly came about because of an error in a contract he was asked to sign, listing him as Buddy Holly. That spelling was then adopted for his professional career.

Some Other Sites Found Around The ‘Net

www.buddyholly.com/
www.history-of-rock.com/buddy_holly.htm
www.buddyhollycenter.org/
www.rockabillyhall.com/BuddyHolly.html
www.buddyhollyarchives.com/
www.nashvillesongwritersfoundation.com/fame/holly.html
buddyholly.user.fr/