[2] After graduating from Trinity College, Dettweiler began traveling to play in amateur golf tournaments.

[2] Dettweiler became friends with Clark Griffith, the owner of the Washington Senators of Major League Baseball.

During a round of golf, she told him of her interest in being a baseball broadcaster, which led Griffith to connect her with Arch McDonald.

As the golf pro, she instructed Jack Benny, Lucille Ball, Danny Kaye, and others.

[7] Dettweiler co-founded the Women's Professional Golf Association (WPGA) in the 1940s, and was elected as its second president.