We've got your double numbers...11...22...33...44.
A sidenote: The Steve Henderson picture has to be from spring training, 1981. The Cubs acquired Henderson from the Mets (for Dave Kingman) in late February, 1981. Henderson must have worn #33 for at least part of the spring, but when the season began, he was wearing #28, which he used during his two year run with the Cubs. He never wore #33 as a Cub in an official game.
And why the switch? My guess is that he wanted #28, but it was already taken by...
...the newly acquired Leon Durham. But Durham switched to the #10 that Kingman wore, making #28 available to Henderson.