 After the war, Stewart wrote a history of the New Zealand Division, which was published in 1921 and would be the main reference work for this formation for several decades. He resumed his teaching career at Canterbury College but in 1926 returned to England, as a Professor of Latin at the University of Leeds. In 1929, he became the principal of University College of Nottingham. He died suddenly in 1934 while in transit to England after a holiday in New Zealand.
