St. Petersburg Times St. Petersburg, FL October 9, 1997 COSBY, CHARLES, 71, of St. Petersburg, died Wednesday (Oct. 1, 1997) at Columbia St. Petersburg Medical Center. He was born in Sitka, Alaska. Survivors include two aunts, Kathryn Kester, Portsmouth, N.H., and Betty Gordon, Windsor, N.Y. National Cremation Society, St. Petersburg.