R.M. "Mac" Crowder, Jerry's maternal grandfather, owned and operated Dallas Pump Service & Supply Co., Inc. a major petroleum equipment service and supply company located in Dallas, Texas. The company primarily catered to the "Full Serve" Service Station industry.

Les Gray, Jerry's dad, managed Dallas Pump Service after Mac decided to semi-retire. The company was sold in 1974.

Les started his own sales, service and installation company and in the late 1980's turned the company's attention to the commercial and industrial fuel equipment industry. After 46 years, in the industry, Les decided to close the business and semi-retire. Les is still active in the industry and is presently serving on a Petroleum Equipment Institute committee to compose and write a guide "Recommended Practices for the Design and Installation of Emergency Generator and Oil Burner Fuel Systems."

Having grown up in the industry Jerry Gray and his wife Trisha decided to carry on the family tradition of being involved in the petroleum equipment industry. Jerry is a licensed fuel storage tank supervisor/installer in both the states of Texas & Oklahoma. He spent the last seven years as a Project Coordinator/Manager and Lead Technician responsible for the installation, start-up, commissioning and maintenance of all fuel controls and monitoring systems for Les Gray & Co., Inc. The prior six years he was employed as a project manager with Siemens Building Technologies, Inc. overseeing large controls and energy conservation projects for city and county governments as well as U.S. Air Force Bases and V.A. Hospitals. He received his degree in electronics from DeVry University.