Mrs. Genter got involved in Thoroughbred racing with her husband, Harold Genter. after attending the Kentucky Derby in 1938. She and her husband bought their first horse in 1939, with their first stakes winner coming in 1941.
She and her husband were graduates of the University of Minnesota, and somewhere along the line their paths crossed with fellow Minnesotan "Minnesota Mac" William McKnight, Chairman and CEO of 3M company. The Genters and McKnight had their Minnesota roots in common, and the Genters wintered in Florida where McKnight eventually established his Florida farm, Tartan Farm. The Genters and McKnight developed a relationship based on their love of racing. (McKnight was given a filly named Aspidistra as a gift from employees for his 70th birthday in 1957. Aspidistra wasn't much of a star on the track, but became the dam of champions Ta Wee and Dr. Fager, among others. The Genters owned Rough 'n' Tumble, who became Dr. Fager's sire).
The Genters also raced In Reality, from whom most of the current male-line descendants of Man O' War descend.
Frances Genter's husband died in 1981. Her son-in-law, Bentley Smith, managed her stable and oversaw its dispersal after her death. Harold Bentley continues to own horses. He raced Lady Joanne in the 2007 Breeder's Cup.
I've got some more stuff to post, but it's LATE here in California, must get rest!