Author: Alfred Walter Stewart
Alternate names: A. W. Stewart; A.W. Stewart; Alfred W. Stewart; J. J. Connington; J.J. Connington; JJ Connington; John Jervis Connington; J. J Connington; J.J Connington; J J. Connington; J. J. CONNINGTON; pseud. [i.e. Alfred Walter Stewart.] J. J Connington; J J Connington
Born: 5 September 1880
Died: 1 July 1947
Bio: Alfred Walter Stewart (5 September 1880 – 1 July 1947) was a Scottish chemist, academic, and part-time novelist who wrote seventeen detective novels and a pioneering science fiction work between 1923 and 1947 under the pseudonym of J. J. Connington. He created several fictional detectives, including Superintendent Ross and Chief Constable Sir Clinton Driffield. [Wikipedia]

He was born in Glasgow and educated at the universities of Glasgow, Marburg, and London. He was Professor of Chemistry from 1919 to 1944 at Queen's University, Belfast, and author of a number of respected treatises on chemistry.

As J. J. Connington, he wrote over twenty detective stories, beginning with *Death at Swaythling Court* (1926), in which the investigation is usually carried out either by Superintendent Ross (*The Eye in the Museum*, 1929; *The Two Tickets Puzzle*, 1930) or, more often, by Chief Constable Sir Clinton Driffield (*Murder in the Maze*, 1927; *The Sweepstake Murders*, 1931). As Connington he also published an unusual science fiction novel, *Nordenholt's Millions* (1923). - from https://www.jrank.org/literature/pages/3659/J-J-Connington-pseudonym-Alfred-Walter-Stewart.html