Obituary of Gregory Loustaunau

Loustaunau, Gregory F., “Greg” 77, of Katonah NY, died Thursday February 5th 2026. Greg was born on August 17^th 1948 in Winchester MA to John Julian and Leola Margaret (Reuter) Loustaunau.

A Katonah resident of 33 years, Greg grew up in Greenwich CT, sailing on the Long Island Sound and skiing the Catskill Mountains with family and lifelong friends.

Greg was a carpenter / builder for 50 years and was particularly proud of his home and lawn. Those who knew Greg remember his sharp wit, quick sense of humor, and knack for creative solutions.

Greg is survived by his wife, Mary Ann, and their 3 children, Jennifer Barker (Chad), Lea and Greg. He was incredibly proud of his grandchildren Jack and Madison Barker, and loved attending Jack’s hockey games in recent years. Brother of Vivian Makmaltchi, Andrea Antico, John Loustaunau, Lawrence Loustaunau, and Leigh Pfefferkorn. Greg was also a beloved uncle to many nieces and nephews.

Greg leaves a legacy of love, laughter, and a life well lived. He will be deeply missed.

Visitation and Memorial Service will be held at Clark Associates Funeral Home, 4 Woods Bridge Road in Katonah NY on Monday February 16^th, 2026 from 10:30AM – 1PM with a prayer service at the funeral home at 12:00 noon.

In lieu of flowers, memorial contributions may be made to the Wounded Warrior Project in his memory.