He was signed from Worksop Town in September 1954 with his debut for the side coming in a 3-0 victory over Barrow in January 1955.
It was in 1955-56 where he claimed the jersey after a string of impressive performances towards the end of the previous campaign following an injury to Norman Malan. He would make a total of 37 appearances in all competitions during the season.
That did include him playing four games for the side the FA Cup, the Iron edging past Rotherham United in round three which required a replay to set up an away tie with Liverpool. Marshall was between the sticks for the 3-3 draw at Anfield, with the game brought back to the Old Show Ground. United were edged out 2-1 in the replay.
Marshall would make a total of 64 league appearances and five FA Cup appearances for the side over a three-year stay before retiring from football.
After departing the game, he became a police officer. When he retired, Peter would spend his retirement between the UK and Majorca.
The thoughts of everyone at the football club are with Peter's family and friends at this difficult time.