John (Jack) Mark Beaudry, formerly of Bartlesville, Oklahoma, died April 25, 2023, in Granbury, Texas. He was born June 15, 1926, in Massena, New York to Mr. and Mrs. Joseph Beaudry. Jack joined the U.S. Navy after graduating from high school. He served in the service until WW2 was over. After leaving the Navy, he attended Clarkson College where he got a degree in Mechanical Engineering. He received his professional engineering license after college and worked as an engineer for several companies. In 1970, Jack joined the Bureau of Mines in Bartlesville and stayed with them through their many changes. In 2014, Jack and his wife, Helen Beaudry, moved to Granbury to be near their daughter and grandchildren. He is survived by his wife, Helen, daughter Jeanette Scott and husband Tom Scott, son John M. Beaudry and wife Kellee Beaudry, granddaughter Michelle Berggren, and grandson Scott Berggren. No services are planned at this time.