He played his debut for Derbyshire in the 1919 season in a match against Australian Imperial Forces, which was the only match he played that the county won.
In the same year he played two county championship matches against Somerset and Nottinghamshire as a steady middle order batsman.
Malthouse was a right-hand batsman who played 13 innings in 7 first-class matches, with a top score of 30 and an average of 9.66.
He was a right-arm off-break bowler but collected no wickets in the 114 balls he bowled.
[1] Malthouse appears to have run a photography business at Whitwell[2] He died at South Kirkby, Yorkshire at the age of 70.