HOUSTON (KTRK) -- Among the graduation ceremonies this weekend was a special one. Two-hundred and sixteen students received their degrees in medicine from UT Health Medical School. And one famous Houstonian was there to see his grandson follow in his footsteps and become a doctor -- legendary heart surgeon Dr. Denton Cooley.

They are the grandsons of Dr. Cooley, one of the most famous heart surgeons in history, and Peter Kaldis and Charlie Fraser are medical students at UT Health Medical School.

"He's brilliant, he's very witty and he's very fun to be around," said Fraser.

Kaldis remembered how his grandfather's name would often come up in class.

"The surgeon would ask for the 'my scissors' and they'd go in and do a story about these scissors. These are called 'my scissors' because Dr. Cooley would ask for 'my scissors' and he designed these not knowing that I was his grandson," said Kaldis.

And when other med students would find out who they were.

"Most of them say it's pretty cool," said Fraser.

"I remember being little and looking in the Guinness Book of World Records and seeing there's my grandfather's name!" said granddaughter Laura Fraser.

Of the five Cooley children and 16 grandchildren, nine are in the medical field. His daughter, Dr. Weezie Davis, is an ophthalmologist and Peter's mother.

"I'd love to watch him operate, although I would get a little faint and I'd have to sit down from time to time. But he encouraged me, if he hadn't encouraged me to go to medical school I probably wouldn't had enough courage to do it," said Dr. Davis.

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Medical legend present to see his grandson graduate med school