John G. T. Slater

January 17, 1935 ~ August 5, 2021 (age 86)


John G. T. Slater of Larchmont and Sleepy Hollow, NY and formerly of New York, NY, passed away on August 5, 2021 at the age of 86. He was born in London, England on January 17, 1935 to the late Dr. Harold Patrick and Theodora Talcott Slater. John graduated from Avon Old Farms School in Avon, CT. He received a Bachelor’s degree from the University of Pennsylvania, and a Master’s from Columbia University.

John was a direct descendant of John Talcott, who immigrated from England in 1632 on the ship, Lyon, with Reverend Thomas Hooker. Talcott and Hooker were founders of the Hartford Settlement in 1636, which eventually became the capitol of Connecticut.

As a respected member of the New York Quarterly Meeting at Morningside, John often volunteered to support his community. He served as a member of the Investment Committee of Friends Fiduciary in Philadelphia. He was an early advocate of the Quaker Green Fund. He served on the committee that arranged financing for construction of Kendal-on-Hudson in Sleepy Hollow, and sat on the board of The Friends Seminary Day School in Manhattan.

John will be remembered for his quiet wisdom, humility, and sense of humor. He was an avid researcher and voracious reader. He enjoyed travel, culinary adventures, and identifying novel investment strategies based on his extensive study and original analysis. Along with an openness to life, dedicated love for family, friends, and community, John was always open to people in need. Friends described him as “a man of great stature” and depth of character. John “viewed the world through his lens of compassion and generosity,” and always encouraged those around him to do the same.

John is survived by his loving wife Caryl and their family: his son, John Slater, Jr. and wife, Paige; their children Sophie and Jamie; Jennifer Mahoney and her daughters, Ryan Hannah, Morgan and Kaitlyn Wertlieb; Robert Mahoney, and his son Connor; John’s sister Shirley Crosman, niece, nephews and many friends.

A Celebration of John's Life was held on September 2, 2021.

In lieu of flowers, donations may be made in John’s memory to the Kendal-on-Hudson Charitable Fund, in Sleepy Hollow

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