Warren H. Morrissey Sr., 93, a lifelong resident of West Roxbury, passed away peacefully on July 17, 2026, surrounded by his loving family. Born in Boston on January 11, 1933, Warren was the son of the late William Morrissey and Eleanor (Knowles) Morrissey. He spent his entire life in West Roxbury while also enjoying the winter months at his home in Vero Beach, Florida. A proud veteran of the Korean War, Warren honorably served his country before embarking on a distinguished 39-year career with the Boston Police Department. Alongside his twin brother, the late William Morrissey, they became the first set of twins to serve on the Boston Police force. Warren earned the respect of his fellow officers and the community through his integrity, dedication, and unwavering commitment to public service.

Warren was the beloved husband of the late Mary (Lane) Morrissey, with whom he shared 60 years of marriage.

He was the devoted father of Jeanne Showstead and her husband David, Warren H. Morrissey Jr., Judith McDermott and her husband Gerard Jr., Janet Stronach and her husband Kurt Sr., Stephen Morrissey and his wife Jessica, Joanne Monaghan and her husband Kevin, and John Morrissey.

He was the cherished grandfather of Nicole and Allison Showstead; Kurt Stronach; Kyle Stronach and his wife Abbie; Keith Stronach; Jessica Stronach; Kristen McDermott and Gerard McDermott III; Abigail Sheldon; Levi Morrissey; Rebecca and Daniel Monaghan; and Caitlin and Lauren Morrissey. He was also the proud great-grandfather of Joshua and Katherine Earle; Emma and Ella Stronach; and Ezequiel Morrissey. Warren was the loving twin brother of the late William Morrissey and stepbrother of the late Francis Levine. He was also the brother-in-law of the late Nancy Morrissey, Ted Levine, Richard Lane, John Lane, Roberta Lane, Marguerite White, and Joanne Vannoy.

Above all, Warren's greatest pride and accomplishment was his family. He led by example, teaching the values of honesty, hard work, loyalty, and compassion. His quiet strength, gentle nature, quick wit, and unwavering love created a foundation that will continue through the generations that follow him. Whether wearing the uniform of his country, the badge of a Boston Police officer, or simply being “Dad” and “Gramps,” Warren lived a life of honor, humility, and selfless devotion to others. He will be deeply missed, lovingly remembered, and forever cherished. His legacy of service, integrity, and unconditional love will live on in the hearts of all who had the privilege of knowing him.

Funeral and visitation services provided by the Robert J. Lawler & Crosby Funeral Home, 1803 Centre St. West Roxbury. A Mass of Christian Burial was celebrated in The Holy Name Church.

Interment St. Joseph Cemetery.