This is Horror Stories for October 1940, cover by John Drew. There is no ISFDB entry for this issue, but I was able to find this cover in the entry for John Drew at the fun site Field Guide to Wild American Pulp Artists.
This is Horror Stories for October-November 1938, cover by John Drew. The ISFDB entry for this issue is here. The version of the cover here is the one preserved at Galactic Central.
This is Horror Stories for February-March 1937, cover by John Drew. The ISFDB entry for this issue is here. The version of the cover presented here is the one preserved at Galactic Central.
This is Horror Stories for August-September 1936, cover by John Drew. The ISFDB entry for this issue is here. I blogged this cover at Infernal Wonders, getting it originally from the lost gallery at “The Golden Age.”
This is Terror Tales for May-June 1937, cover by John Drew. The ISFDB entry for this issue is here. Images of any quality of this particular cover are hard to find; this one is the one preserved by Galactic Central.
This is Terror Tales for March-April 1937, cover by John Drew. The ISFDB entry for this issue is here. I found this version of the cover on this Pinterest page. The version preserved by Galactic Central is a bit smaller but also a bit sharper:
![version preserved by Galactic Central](http://www.philsp.com/data/images/t/terror_tales_193703-04.jpg"){kind=link}