Lawrence Pederson, age 78, of O’Fallon, Missouri, passed away peacefully on September 7, 2026. Larry was a devoted husband, father, grandfather, brother, and friend.

Known for his wonderful sense of humor, Larry brought warmth, laughter, and joy into every room he entered. He built a rewarding, long-standing career at IBM, where his analytical mind and sharp intellect truly thrived. Outside of work, Larry was an avid reader and an absolute master of puzzles. He found great joy in watching sports, enjoying classic movies, traveling, celebrating the holidays with family, and above all, cherishing every moment spent with his beloved wife, children, and grandchildren.

He is survived by his devoted wife, Mary Pederson; his loving children, Kevin (Alicia) Pederson and Marcella (Luke) Trantina; his cherished grandchildren, Kayden, Mykah, Ava, Liam, and Logan; and his sister, Diane (John) Supric. He will be deeply missed by all who knew and loved him.

Services Information:

• Visitation: Wednesday, September 16, 2026, beginning at 9:30 AM

• Funeral Mass: Wednesday, September 16, 2026, at 10:30 AM

• Location: Assumption of the Blessed Virgin Mary Parish – 403 N. Main St., O’Fallon, MO 63366