At 90, Cronk looks and plays as if she were decades younger. She recently won her first U.S. women's title, capturing the gold medal in her age group at the National Senior Olympics.
'If I can serve as an inspiration to other women to get out and play, it would be great,' she said.
Despite a tussle with a turtle, Cronk carded a three-day, 54-hole total of 270 in June at the Honey Bee Golf Course in Virginia Beach, Va., which attracted more than 400 senior golfers.
Playing through a string of three long water holes, Cronk sat her ball on the edge of the drink. As she approached, the ball moved.
'This turtle had it in its front claws and was pulling it back into the pond,' Cronk said.
'I reached down and said 'shoo' and grabbed the ball,' she said. 'I had to take a penalty, of course, but I wasn't about to let a turtle make off with my ball. You can't let anything distract you in a tournament.'
That competitive spirit was very much in evidence recently when Cronk, who lives in the small western Massachusetts town of Shelburne Falls, and friend Ron Weller placed second in a member-guest tourney at the Greenfield Country Club.
'I was very relaxed and putting very well,' Cronk said, making a beeline for the scoreboard upon reaching the clubhouse, while much younger players scrambled for cool drinks in the 90-degree heat.
'And still hitting those straight drives,' added Weller, who admits to being 'more than 30 years younger' than his partner.
'She's an amazing woman, just amazing,' said club pro Bucky O'Brien. 'And we're very proud of her.'
Cronk was just warming up with the 18-hole tournament. Every Tuesday she plays 27 holes. Her only concession is taking a cart on the hilly Greenfield course. She still walks the nearby nine-hole Meadows Golf Course.
'I call it my day off,' she said. 'It's my relaxation. You have to put everything else out of your mind. You can't be thinking about anything else when you address the ball.'
Her late husband, Coast Guard Capt. Paul Cronk, introduced her to the game in 1935 when they were stationed in Spring Lake, Mich. He hoped it could provide some relief from the often worrisome life of a Coast Guard wife.
'He got me some rental clubs and we played nine holes. I shot a 47. He shot a 53,' she recalled. 'He looked at the scorecard and said, 'You've played before.' I said, 'No.''
It wouldn't be the last time besting the men for this contemporary of golf's first female phenom -- Babe Didrickson Zaharias.
'My nickname was the 'Second Babe,'' Cronk laughed. 'I got to meet her once at a tournament.'
'I really had no opposition at the senior games, but I was very happy when I looked over the card and found I had beaten the men,' she said.
Initially apprehensive about Annika Sorenstam's foray into male competition, Cronk said she quickly became a rooter glued to her television. 'I just couldn't see how it was possible for her to play a good game with all the distraction,' she said.
For most of her life, golf was her private time, the release that had to be squeezed in between moves and family responsibilities with never enough time for proper practice.
Still, Cronk got sponsorship offers to turn professional.
'My husband said if I wanted to do it that would be fine with him,' she recalled. 'And I just looked at him and said, 'I don't know why you would say that. I have two babies and you are going to be transferred.''
And, now, at 90, she is a champion with a gold medal to prove it.