 Both John Murray Cobbold and director Robert Nevill Cobbold were killed during the war, the position of director being filled by John Cavendish Cobbold in 1948.Despite the interruption due to the war, Duncan managed the club for over 500 games between 1937 and 1955.Following three successive top-eight finishes, the 1949–50 season ended with Ipswich in 17th position in Division Three (South), the club's lowest ever league finish.