Robert Gray Weeks

Robert G. Weeks, 89, of Old Greenwich passed away on February 27, 2026.

He was predeceased by his parents, Catharine and Richard Weeks; his brother, Richard; his beloved wife Nancy; and his son, James.

He is survived by his daughter, Jayne, and her husband, Peter Fusaro; his son, John, and his wife, Melissa; as well as nine grandchildren and five great-grandchildren who carry forward his stories, humor and strong expectations.

To his family and to the many people he influenced along the way, Mr. Weeks leaves a legacy of stubborn strength, unflinching integrity, and deep affection for those he loved. He was an old-school straight shooter who believed that character mattered and that family was the foundation of a meaningful life. At family gatherings he was known for delivering fierce and unforgettable speeches-equal parts wisdom, challenge and humor. He often reminded the younger generations that the measure of a life was simple: be a contributor, not a dependent. Over time, his stories grew legendary among the younger members of the family, cementing his place as the enduring patriarch.

Mr. Weeks retired in 1994 after a distinguished 38-year career with Mobil Corporation. He began in 1954 as a Drexel University co-op student at Mobil's refinery in Paulsboro, New Jersey. After graduating from Drexel with a B.S. in Chemical Engineering, he joined Mobil full-time and went on to hold a wide range of roles, from engineering to senior executive leadership.

He served as Executive Vice President of Mobil Oil Corporation from 1980 to 1986, was named Vice President of Mobil in 1986, Senior Vice President in 1988, and Chief Financial Officer in 1993-a position he held until his retirement in December 1994.

But titles tell only part of the story. As he liked to say, he was a character among "Classics." Everywhere he went, he carried the same enduring qualities: a firm handshake, a sharp wit, and a laugh that could disarm almost anyone.

First priority was always to provide Nancy and his three children some good times. Then for his brother, grandchildren, the Quinton New Jersey Elementary School and a number of others to carry his share of the load and then some. Robert was a generous man that helped many people whose lives were better for his quiet help and steady example.

A celebration of Life will be held in the spring to honor and remember Robert. In keeping with his wishes, his ashes will be spread at his favorite beach and his bunkhouse in Vermont-places he loved deeply, and where his spirit will always remain. The stories he told, the standards he set, and the love he showed his family will continue to guide the generations that follow him.