"He and his brother, Lou, belonged to the Junior Birdmen of America, a model airplane club promoted by the Hearst newspapers," said his son, Dr. Karl Kramer of Coral Gables, Fla. "His brother was really the airplane builder. Lou was the dreamer, the enthusiast, the creator. Sol had to figure out how to pay the bills. Or, as he put it, 'Lou was the spender and I was the saver.' "