* The Riddle of the Cheshire Cheese, (ss) Detective Weekly Feb 26 1938 * The Mystery of the House Nobody Owned, (ss) Detective Weekly Jan 29 1938

* The Man Who Shrugged, (ss) Detective Weekly Feb 19 1938 * Househunting for Luck, (ss) Gloucester Journal Feb 8 1936 * The House of the Lost Men, (na) Detective Weekly Jan 9 1937 * The Girl with the Million Pound Secret, (na) Detective Weekly Jan 15 1938 * Getting On in the World: Back-Yard Floriculturists, (ar) The Saturday Evening Post Apr 5 1930 * Enter Trigger Gallante, (na) Detective Weekly Oct 23 1937 He died of a heart attack shortly after celebrating his fiftieth wedding anniversary in 1988. He enjoyed foreign travel, particularly to France, and took up golf on retirement. Throughout much of this time he continued to write detective fiction from 'sheer inner necessity', but also to supplement a modest income. No mean feat with a family to support his daughter, Kathryn, was born in 1943 and his son, Derek, in 1949. In the 1950s he studied for an external economics degree from London University. After the war he trained as a teacher and spent the rest of his life in education, first as a primary school teacher and then as a lecturer in a college of further education. Although a conscientious objector, he served in the Royal Army Medical Corps in World War II, landing in France shortly after D-Day.

His first detective story was published in 1936. Writing was always important to him and very early on he published articles in newspapers and magazines. Due to family circumstances he was unable to go to university and started work in the Housing Department of Bristol City Council. He lived virtually all his life in Bristol and was a 'scholarship boy' boarder at Queen Elizabeth's Hospital school. Francis Duncan is the pseudonym for William Walter Frank Underhill, who was born in 1914.

Mordecai tremaine mystery series