Welcome to Pond boss Stan, sounds like you have the makings of a nice little trout pond.
You already got lots of good info so I'll just add that since your in PA. there are lots of places that carry Tigers and it's a hearty trout that is easily caught and would make a great addition to other trout varieties in your pond.
Since your pond is small you could add adult GSH and if the numbers got too high a couple fish traps would easily control them, and adding some larger trout would also help.
Investing in a small thermometer with a 10 ft. probe would be a good tool to keep track of your temps during the summer.

We also like photo's so if you can post some.