E. M. (Mick) Hall was on the staff at Fleetway Publications as art editor of their nursery comics in the 1960s and was an irregular scriptwriter for various series. In the 1950s he wrote scripts for 'Jack and Jill', 'Fun in Toyland', 'Flipper the Jolly Penguin', 'Harold Hare', 'The Merry Stories of Pixie Pip', 'The Tiny Tales of Gregory Grasshopper' as well as artwork for the feature 'It's Fun Finding Out' (all in Jack and Jill), and 'Harry on His Own' (in Playhour).
He later produced artwork for a number of 'Tom & Jerry' audio books published by Carnival in 1990 but I've otherwise traced no other work by Hall who, presumably, was far more prolific than this little sketch would indicate. Hall contributed to Swift Annual 2 (1955) and may have worked on the Hulton paper before arriving at Fleetway.
One of the Boys by Penny Carstairs. London, Carnival, 1990.
Ghost Mouse by Stephen Thraves. London, Carnival, 1990.
Fat Free Cat by Stephen Thraves. London, Carnival, 1990.
Magical Cat by Penny Carstairs. London, Carnival, 1990.