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Winter services were suspended from 1960, but opening of the New University of Ulster near Coleraine saw them restored, together with the addition of new halts at University (1968) and Dhu Varren (1969), to cater for student travel.
His academic career began as Assistant Lecturer, Bedford College for Women, 1947–48; then Assistant Lecturer at Birkbeck, 1948–51; Lecturer, Queen's University Belfast, 1951–56; Lecturer, Bristol University, 1956–60; Senior Lecturer and Reader, Queen’s University Belfast, 1960–64; Reader, Lancaster University, 1964–70; Chair of Pure Mathematics, New University of Ulster, 1970–88; and Leverhulme Fellow 1988-91.