John Howitt
Cover Art by 4
 | Horror Stories, January 1935 | Pulp Magazine |
 | Horror Stories, September 1935 | Pulp Magazine |
 | Secret Service Operator #5, June 1936 | Pulp Magazine |
 | Secret Service Operator #5, February 1937 | Pulp Magazine |
| Horror Stories, January 1935 | Pulp Magazine |
| Horror Stories, September 1935 | Pulp Magazine |
| Secret Service Operator #5, June 1936 | Pulp Magazine |
| Secret Service Operator #5, February 1937 | Pulp Magazine |