Robert Hahn

Robert S Hahn

Wednesday, November 1st, 1916 - Tuesday, January 5th, 2021
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OAKHAM- Robert Simpson Hahn,104, passed away at his home in Oakham MA on Jan 5 2021. Robert was born on Nov 1, 1916 in New York City, the son of Clarence W. And Edith S. Hahn. He spent most of his childhood in Flushing & Pomona New York.

He entered an engineering program in 1936 at the University of Cincinnati earning his Doctorate in mechanical engineering in 1944.

In the early 40’s Dr. Hahn took a position with Heald Machine in Northboro where he invented and developed Control Force Grinding. Subsequently he was inducted into many prestigious, global engineering organizations including. CIRP; Paris Fr. and the National Academy of Engineering, Washington DC. He held many patents and is the author of Handbook of Modern Grinding Technology. In the mid-80’s he launched Hahn Engineering in Northboro. In 2000 Dr. Hahn moved his research operation to WPI’s research laboratories where he also became an adjunct professor advising graduate students.

Dr Hahn married Helen Shead and they had three children; Barbara, Robert and David. After his first wife died, he married Kathleen Dillon in 1978 and they settled in Oakham MA, where they enjoyed many outdoor activities including canoeing, hiking, skiing and snowshoeing. Robert has most always had at least 1 horse in his paddock, and in later years started adopting rescue horses. He was well known in the Oakham area and became Oakham’s oldest citizen in 2017 when he was presented with the Boston Post Cane.

He is survived by many grandchildren and great grandchildren, his horse Storm Warning, and many, many friends.

A graveside service was held in Worcester County Memorial Park in Paxton. Arrangements are under the care of Pillsbury Funeral Home 96 S.Barre Rd. Barre. For an online tribute please visit:
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4 trees have been planted in memory of Robert S Hahn

Christopher Brown

Posted at 06:21pm
Thank you Bob for your wonderful intellect, kindness, and generosity. You were a fantastic, engineer, educator, and researcher.

3 trees were planted in the memory of Robert Hahn

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Misha bozarth

Posted at 09:04am
My heartfelt condolences to Bob’s family.. Bob, I will miss you beyond words. I thank you for our friendship over the years, I thank you for all your kindness and generosity, I thank you for all our conversations and wonderful adventures we were always my Mr. and the memories we had will remain in my heart forever...your wonderful smile and contagious laugh... and of course you always telling me to “drive wild and reckless “! Love you... misha

Jan Rose

Posted at 08:40pm
Dear Eileen and Brian, I am so sorry for your loss. How blessed he was to have so many healthy years and to have you with him. Love Jan
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A memorial tree was planted in the memory of Robert Hahn — Plant a Tree Now

Rebecca Hamel

Posted at 06:28pm
Mr Hahn was the kindest, gentlest man I have ever known. He continually amazed me with his knowledge of many subjects and his willingness to share his knowledge. Everyone who knew him loved him, they wanted to talk with him, sit next to him at the diner. So many stories to share. I will share one.
I own a small restaurant in Barre. One day a gentleman, James Heald was there with his niece, Linda. Mr Heald was from the Heald family of the Heald Machine Co. Mr Hahn was an engineer for the Heald Company. Knowing this I mentioned to Mr Heald that Mr Hahn had worked for his company many years earlier. I lamented that Mr Hahn was not there to talk with him. Not 5 minutes later, Mr Hahn walked in! I couldn’t believe it! I was so excited to reintroduce these two old friends! Seeing each other, they both exclaimed, “BOB”, “JIM”! They both recognized each other!, Mr Hahn joined Mr Heald and Linda for lunch, they reminisced over their time at the company. My heart was bursting to have been apart of their becoming reacquainted.
From then on, Mr Hahn would ask how Mr Heald was doing and vice versus. I think that day is likely on of my best days!
I will miss Mr Hahn terribly and feel so blessed to have known him. The angels are rejoicing, Heaven will be a livelier place now!

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