Galen Wayne Hartman, 79, of Tool, TX passed away on January 25, 2024. Galen was born in Oklahoma City, OK on September 3, 1944; he was raised in Sadler, TX; and has primarily resided in North Texas – Sherman, Irving, Duncanville, and Tool (Cedar Creek Lake area).

Galen is survived by his wife, Sandra LaVonne Elson Hartman (Enchanted Oaks); three children from his first wife, Gregory Wayne Hartman (Dallas), Clarissa Ann Della Valle (Plano), and Dr. Cynthia Lynn Hartman (Decatur); his sisters, Kay Trietsch (Sanger) and Sheila Cox (Collinsville); as well as six grandchildren. He is preceded in death by his parents, Stanley Arthur and Lola LaVeda Canfield Hartman.

Galen graduated high school from S&S Consolidated in Sadler, TX (1962) and attended college at Southeastern Oklahoma State University and North Texas State University earning degrees in Chemistry and Chemical Engineering (1966). His career included working for notables, DuPont Chemical and Texas Instruments. His entrepreneurial spirit led him to start several small businesses for chemical and solvent distribution, product formulations, analytical chemistry, and providing expert testimony in the courtroom.

His upbringing in the oil and gas industry, combined with his analytical chemistry background, allowed him to be very instrumental in shaping processes and policies used in the industry today. He worked closely with the Railroad Commission of Texas to ensure public safety. Through the years of his career, many of his ideas and work have resulted in multiple patents being granted.

He loved the outdoors, wildlife, working with horses, recreational shooting, woodworking, metal working, and motorcycles.

The viewing will be at Blue Mound United Methodist Church in Denton, TX (8421 North I-35, exit 473) on Saturday, February 3, 2024 at 10:00am with the service beginning at 11:00am. Burial will follow at the Blue Mound Cemetery located next to the church.

In lieu of flowers, the family requests donations be made to Arms of Hope , 21300 State Hwy 16 North, Medina, TX 78055 (830-589-7140), an organization for which Galen has supported through the years.