Gary attended Loyal Public Schools and graduated high school at Loyal. On June 14, 1958 Gary married Cynthia Sue Henry in Enid, OK. Three children blessed this marriage Vickie Condit, Tony Dupy and Shellie Howard. The family made their home in Enid until they moved to Taloga in 1992.

Gary worked for Sonat Exploration. He spent his spare time hunting, fishing and piddling in the shed.

Gary is preceded in death by his parents, wife Susie Dupy, daughter Vickie Condit, brother Leroy Dupy, sister LaDonna Robertson, sister-in-law Nancy Mack and two nephews Lonnie and Gary Mack.

Gary is survived by son Tony Dupy of Sapulpa, OK, daughter Shellie Howard of Glenpool, OK, sister Dina Janssen of Paducah, KY, sister-in-law Jean Lee Jones of Enid, OK, 7 grandchildren, 10 great-grandchildren, 6 nieces, 6 nephews and a host of other family and many, many friend