That was my goal for many years. And I did it many times. I wanted to catch every species in Pa. (before Bobcat, Fisher & Otter season)
With the addition of Otter, Fisher & Bobcat I haven't tried for the Slam.
Here's what you have to catch in one season for a Slam-
did I miss any species?
Some folks try for a water Slam or land Slam too
I had a couple of strange doubles this season.
Around Thanksgiving, I had a crazy triple- Coyote, Red Fox & Grey Fox. I had 4th trap set and wished I had a Coon there. I guess we are never satisfied.