From his official CBS Survivor: Africa cast bio page:
"Born and raised in Detroit, Michigan by his mother Mae, Clarence Black is currently a high school basketball coach. He attended Bridgton Academy in North Bridgton, Maine. Black earned a college basketball scholarship and graduated with a Bachelor of Arts degree in Classical Studies at Hillsdale College in Michigan.
While at Hillsdale, Black played basketball and founded the Tod Phister Memorial Basketball Tournament, which raises money to support cancer research in honor of a fellow teammate who passed away. After graduating, he worked as a stockbroker and financial planner, but decided the profession wasn't for him.
Clarence Black is a member of the Detroit County Alumni Council and a member of the Board of Directors for Wise Steward Ministries Youth Education Program. He describes himself as competitive, loyal and silly. His birth date is December 21."