Books not in a series

Detective Fiction Weekly. Vol. 44, No. 5, September 28, 1929

Detective Fiction Weekly. Vol. 60, No. 1, July 4, 1931

Flynn’s Weekly Detective Fiction. Vol. 25, No. 2, August 13, 1927

Flynn’s Weekly Detective Fiction. Vol. 27, No. 2, September 24, 1927

Flynn’s Weekly. Vol. 22, No. 3, March 5, 1927