Margaret L. Duncan worked as an art teacher at Huyton College School from 1935 to 1947 before moving to St Katherine’s College in Tottenham; she retained a close association with Huyton throughout her life. 

A diligent and committed teacher, she made precise watercolour landscapes and discerning humorous drawings that demonstrated her concern for simple authenticity. Her painting The Annunciation was exhibited at the RA in 1941.