He was raised on a farm near Thorne in South Yorkshire and attended Goole Grammar School.
Graves joined Spar at the age of 37 and, in 1986, he left the business to go it alone and founded the Costcutter supermarket chain.
He grew Costcutter into a household name with over 1,600 stores and £640m sales.
A keen cricket lover, Graves was a member of the ‘Gang of Four’ who took over Yorkshire CCC in 2002.
He has been on the board ever since and injected circa £10m of his own money into the business, most of which is tied up in loans to the club.