| 2 | X-Men (1st series) | 1st appearance Amos Frederick Duncan; 1st appearance Amos Frederick ’Fred’ Duncan; 1st Appearance of The Vanisher; 1st appearance of The Vanisher (Telford Porter); 1st appearance of Vanisher (Telford Porter) |
| 2 | X-Men (UK Edition) | 1st Appearance of The Vanisher; 1st appearance Amos Frederick ’Fred’ Duncan |