Robert H. Leitfred
Books 1
| Seven Seconds of Eternity |
Contributing Writer 4
 | Flying Aces, January 1935 | Bedsheet Magazine |
 | Weird Tales, Vol. 25, No. 5 | Pulp Magazine |
 | Weird Tales, Vol. 35, No. 5 | Pulp Magazine |
 | Weird Tales, Vol. 36, No. 2 | Pulp Magazine |
| Seven Seconds of Eternity |
| Flying Aces, January 1935 | Bedsheet Magazine |
| Weird Tales, Vol. 25, No. 5 | Pulp Magazine |
| Weird Tales, Vol. 35, No. 5 | Pulp Magazine |
| Weird Tales, Vol. 36, No. 2 | Pulp Magazine |