It was taken on the Elland Road pitch and features a mix of senior players and young recruits who Gray was keen to involve in the day to day routine of life at Leeds United.
Senior players pictured include Frank Gray, Martin Dickinson, Tommy Wright and Lyndon Simmonds. But can you name everyone else?
Behind the scenes the Whites were waging a battle to attract new talent in the early 1980s with the club playing football in Division Two.
Eddie Gray was a firm believer in the development of young talent and the same attention to detail was paid at United competed alongside the Football League's more glamorous talent spotters such as Manchester United and Arsenal.
"It is a struggle at times but we have had our fair share of success against the big boys," said Gray.
Leeds United finished the 1983/84 season in tenth position in Division Two with Tommy Wright finishing top scorer with 11 goals. Stand-out results that season included a 4-1 win against Middlesbrough at Elland Road on New Year's Eve and 3-0 demolitions of both Shrewsbury Town and Carlisle United.