Johnny Weissmuller Jr., a San Francisco longshoreman and son of the famed actor and Olympic swimmer, has died at age 65. Mr. Weissmuller, who died from liver cancer Friday, is probably best known because his father won five Olympic gold medals in swimming and later starred in 12 Tarzan films. He died in 1984 of pulmonary edema. But the younger Mr. Weissmuller also led a full and eclectic life, serving in the Navy, appearing in film, television and stage roles and working as a longshoreman on Bay Area docks. More recently, he wrote a book about his father. Mr. Weissmuller's...