Following is the obituary for DENNIS B. POSTER, submitted for the family by the Abraham L. Green and Son Funeral Home.

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Dennis B. Poster, of Westport and Southport, passed away surrounded by his loving family at home on Friday, June 24. 

He was born in Syracuse, N.Y., to Dr. Marvin and Marion Poster on June 20, 1940. The oldest of three children, he graduated from Syracuse University and married Joan in 1965.

He ran specialist books on the New York Mercantile Exchange and the American Stock Exchange. He later managed D.B. Poster Associates, working from Connecticut to be closer to his family. 

He was on the Executive Committee of Weill Cornell Medicine’s Dean Council, was emeritus chairman of the JHE Foundation, and served on the boards of the Hole in the Wall Gang Fund, Save our Strays and the Compass Fund. He was also a trustee for the Aronson Family Foundation, which supports education, the arts, healthcare and animal rescue charities. Dennis was most generous with his time and extremely philanthropic in his community.

Dennis loved golf, Pepe’s Pizza, DQ Blizzards, blackjack, backgammon, “Shark Tank,” watching CNBC, his cat named Shadow, feeding the surrounding wildlife by his home and, most importantly, his family. 

He had a near 50-year Father’s Day tradition of mini-golfing with his daughters and then his grandchildren. He played semi-pro golf and often played in pro-am golf tournaments with friends. A scratch golfer, he once shot a 66 at Winged Foot!

Dennis had a big heart, a warm soul and was fiercely loyal to his family and friends. We will miss his contagious chuckle, generosity, sage advice and especially his love. 

Dennis is survived by his wife, Joan, of 57 years; his daughters, Meredith and Cindy (David) of Westport; his six grandchildren, Hannah, Lillie, Matthew, Max, Jack and Sam; his brother, Greg, and his sister, Wendy.

In lieu of flowers, the family requests contributions be made to the Hole in the Wall Gang Camp and Let’s Win Pancreatic Cancer.