During the war Mary taught drawing, design and weaving at Chelmsford School of Art from 1941 to 1944 but gave this up when she became pregnant with her first child.

[4] Martin participated in group exhibitions of constructed art in England and abroad, notably Konkrete Kunst, Zürich 1960, and Experiment in Constructie, Stedelijk Museum, Amsterdam, 1962.

Martin designed a screen for the Musgrave Park Hospital in Belfast (1957), reliefs for the Orient Line's S.S. Oriana (1960) and a wall construction for the University of Stirling.

[5][6] Martin was the joint winner of the 1969 John Moores Painting Prize along with Richard Hamilton.

In 2007 the Camden Arts Centre held an exhibition of Mary and Kenneth Martin's work.