Scion of the Bryan newspaper family, J. Stewart Bryan has seen his fortunes diminish. Still chairman of Media General, the semiretired Bryan and his family control 84.9 percent of the B shares of the company, which owns The Richmond Times-Dispatch. His 569,670 A shares have plummeted from about $39 million a few years ago to a mere $4 million or so at today's prices of about $9 a share. Still, that's better than a year ago, when shares were a buck and change.