Playing racquetball is a family tradition started by Dave Adams, left. Today the game is enjoyed by, from left, his son Bob, Bob's sons Brian and Kevin, and family friend Scott Hofstra. (Photos by Marilyn Thomas/H-F Chronicle) Racquetball is a family tradition for Bob Adams of Homewood. Today three generations play the game, and Bob and his sons meet each week for a friendly game or two at the Homewood-Flossmoor Park District's H-F Racquet & Fitness Center, 2920 W. 183rd St. in . . .