He graduated with a Bachelor of Science degree in aeronautical engineering from San Jose State University in 1969 on a scholarship from the Society of Experimental Test Pilots (SETP), of which his father, William E. Gray, had been a member. Gray himself became a member of SETP in the mid-1970s and served on the SETP Board of Directors as Southwest Section Technical Adviser in 1981/1982.
He received a Bachelor of Science degree in aeronautical engineering from San Jose State University in 1969, thanks to a scholarship from the Society of Experimental Test Pilots (SETP), which his father, William E. Gray, had been a member of.  William E. Gray later joined SETP himself and served on its Board of Directors as Southwest Section Technical Adviser in 1981/1982.