[3] He scored his first and only League goal for the club in a 3–2 win over Blackpool on 11 April 1931, and ended his debut season with seven First Division appearances.
He also made four appearances in the FA Cup and scored his only other goal for the club in a fifth-round tie against Brighton and Hove Albion on 18 February 1933.
[4][5] After seven seasons at Upton Park, he had made a total of 40 league and cup appearances for the club, scoring two goals.
His last game came on 25 January 1936, a 2–0 win over Doncaster Rovers and he left the club for Swindon Town two days later.
[4][5] Mugrave's two-season tenure at Swindon Town saw three goals in 23 Third Division South games, and a single FA Cup appearance.