Walton's last game in charge of City was the 1 - 1 FA Cup at Ashton Gate against Bristol City in January.
Last season Mr Walton issued 91 yellow cards and 6 red cards in 36 games.
Records show Peter Walton referee'd Scunthorpe 0 - 2 Cardiff way back in December 1998 in front of just 3,200 people.
He was also the refree that took charge of our first game back at this level in 2003. The 0 - 0 draw in the searing heat at Millmoor, Rotherham.