Painter, draughtsman, printmaker and teacher, originally Helen Mary Ferrier Taylor, under which surname she worked until her mid-thirties. She was born in Caterham, Surrey, and educated nearby at the Eothen School. Attended the Slade School of Fine Art, 1917–21, Slade Scholarship, 1919–20, winning several prizes. Teachers included Henry Tonks, Walter Westley Russell and Philip Wilson Steer. She was married briefly to the painter John Cooper; then settled in Camden Town, and taught; from around 1935 married to Lieutenant-Colonel H W Moggridge. Adopted his surname for her work, at that time realistic, most of which was burnt during World War II. From about 1939–50 she stopped painting and when she started again, signing work with initials, it was to produce a series of colourful abstract pictures, latterly abstracted scenes of the Sussex Downs, where she had settled from the early 1960s at Piddinghoe.