Credits for William M. Gaines on Spider-Man related comics and items from our database.
| Sep 1975 | Mad Magazine (U.S.) #177 (Publisher) |
| Jan 1979 | Mad Magazine (U.S.) #204 (Publisher) |
| Oct 1979 | Mad Magazine (U.S.) #210 (Publisher) |
| Jan 1980 | Mad Magazine (U.S.) #212 (Publisher) |
| Date TBD | Mad Magazine (U.S.) #265 (Editor) |