In almost half a century of romantic busybodying, nearly 20,000 people have passed through her books - from Bluebell girls and businessmen to beauty queens and barristers.
There have been hundreds of weddings and, today, in a world of speeddating and internet romance, she still has around 400 clients of all ages hoping Stella's personal touch can help find them their Mr or Miss Right.
I thought at least given my experience, I might be able to help other people."And so on a hot July afternoon in 1962, Stella travelled by train to London to register the name of the Kathleen Kent Marriage Bureau with Companies House.
"I didn't really have the foggiest idea what I was doing," she says now.
"I just got on with it and decided I would deal with problems as they arose." Such was her determination that her first matchmaking attempts took place in the maternity wing of her hospital, where she had just given birth to her daughter.
Like the one from the widow with three children who came to see her despairing that she would find love again.
"She had watched her husband being swept out to sea and drowned, and had been devastated by it," Stella recalls. "I put her together with a local widower who had five children of his own and feared no woman would want to take him on.