John S. “Jack” Kelly, Sr., age 95, a lifelong Quincy resident, died peacefully, Monday, March 24, 2025 at South Shore Hospital in Weymouth, surrounded by his loving family.

He was born in Hull, to the late Kathleen J. (Manning) and John S. Kelly. Raised and educated in Quincy, he was a graduate of Quincy High School.

Jack was proud to have served in the United States Army during World War II.

He was a longtime parishioner of Saint John the Baptist Church in Quincy.

He was a letter carrier with the United States Postal Service for forty-two years, having spent most of his career delivering on Hospital Hill in Quincy.

Jack had a passion for all sports; however, his beloved Boston Red Sox reigned supreme. He volunteered as a coach for many years in the Babe Ruth League and for the American Legion Morrisette Post 294.

Jack enjoyed dancing, candlepin bowling, and playing cribbage. He also enjoyed game shows, especially Jeopardy! and Wheel of Fortune.

Beloved husband of the late Helen A. (Cuddy) Kelly.

Devoted father of Kenneth J. Kelly and his wife Debbie, Maureen E. Shepard, the late John S. “Ras” Kelly, Jr., and the late Brian E. Kelly and his surviving wife Renee.

Loving grandfather of Derek Shepard, Genevieve Valiquette and her husband Cory, Stephanie Mercer and her husband Cortland, and Caroline Kelly.

Cherished great grandfather of Cortland A. “Sonny” Mercer.

One of six siblings, he was the dear brother of Bernadette Kelly, the late Robert Kelly, the late Leo Kelly and his surviving wife Margaret, the late Edward Kelly and his surviving wife Pierrette, and the late Joseph Kelly and his surviving wife Barbara.

Also survived by many nieces, nephews, and their families.

Visiting Hours will be held at the Sweeney Brothers Home for Funerals, 1 Independence Avenue, Quincy, on Friday, April 4, from 4 – 7 p.m. Relatives and friends are invited to attend. A Funeral Mass will be celebrated in Saint John the Baptist Church, 44 School Street, Quincy, on Saturday, April 5, at 10 a.m. Interment, with military honors, to follow at Pine Hill Cemetery, West Quincy.

For those who wish, donations in Jack’s memory may be made to the American Cancer Society, 3 Speen Street, Suite 250, Framingham, MA 01701 or to St. Jude Children’s Research Hospital, 501 St. Jude Place, Memphis, TN 38105.