Special Forces Association Chapter 54

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In Memory of
John J. Koski

John Koski passed away on July 27, 2025 at the age of 80. He was a member of Chapter 54 of the Special Forces Association. He served with the 11th Special Forces Groups. John was born on February 13, 1945, in Worcester, Massachusetts. He was a resident of Chatham, Massachusetts.

IMO John Koski Special Forces

He was born in Attleboro, Massachusetts, on February 13, 1945. He shared 43 years of marriage with his wife, Sandra Koski, who passed away shortly after him in December 2025.

Jack spent much of his life in Central Massachusetts before eventually settling in Chatham, Massachusetts. He dedicated many years to teaching and coaching at Paxton Center School, where he made a lasting impact on his students and community. A proud graduate of South High School and Worcester State, Jack was known for his strong work ethic and passion for the outdoors.

In his later years on Cape Cod he fished as a lobsterman on his boat called the "Sandy K". Upon retiring from that business, he served as Assistant Harbormaster with the Chatham ASSC. John, sometime referred to as "Jack", was a member of the VFW in Chatham.

He served 28 years in U.S. Army Special Forces. Among his Green Beret friends he was known for his intellect and keen sense of humor. The cheerful banter in the Teamroom was at a high level whenever John Koski was present.

There was a joint burial with his wife Sandra Koski at the Bourne National Cemetery, on Friday, May 1, 2026 at 1:15. There was a Celebration of Life for Sandy and John at the VFW of Chatham, MA on Saturday, May 2, 2026

Obituary

 

 


LTC William F. Buckley
Memorial Chapter

Serving Green Berets
in Massachusetts
and Beyond

Special Forces Shoulder Patch

 

Special Forces Crest



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