Short Stories magazine was published Mar-1910 – 10-Nov-1937 by Doubleday. Initially most of the stories -- "25 stories for 25 cents" -- were reprints from all over, including translations; after 1910 converted into an all-fiction pulp adventure magazine, with stories by Sax Rohmer, W.C. Tuttle, Harold Lamb, Max Brand, Talbot Mundy, L. Patrick Greene, James B. Hendryx, Edgar Wallace, etc. Short Stories UK was mostly a reprint of US original, but issues not necessarily in conjunction.
Lowry writes an imitation mock letter to Carol Brown dated April 29 to 2 May 1926 posing as editor of the magazine (Collected Letters Vol 1 Pg. 17-20).