With her skating partner , Johnny Johns , she became the 1971 North American bronze medalist , 1972 Nebelhorn Trophy champion , and 1973 U.S. national champion .
Mary Karen Campbell is an American former competitive ice dancer .
With Mary Karen Campbell 's skating partner , Johnny Johns , Mary Karen Campbell became the American   American bronze medalist , 1972 Nebelhorn Trophy champion , and American U.S. national champion .
Mary Karen Campbell is an American former competitive ice dancer .