Yesterday Man #3
| Series | Alpha Flight |
| Number | Vol. 1 #3 |
| Publisher | Marvel Comics Group* |
| Date | 1983-10 |
| Type | Comic Book, Softcover |
| Language | English |
| Artist | John Byrne |
| Colorist | Andy Yanchus |
| Editor | Denny O'Neil |
| Editor In Chief | Jim Shooter |
| Letterer | Tom Orzechowski |
| Writer | John Byrne |
| Genre | Superhero |
| Published in | New York, NY |
| Characters | Snowbird, Guardian, Sasquatch, Northstar, Aurora, Marrina |
| Story Location | Canadian Arctic |
| Notes | Back-up story is "Purpose", which tells the origin of Guardian |