I was being a bit tricky with that last post guys. It's likely that both fish are Warmouth. I read that the eye turns red on Warmouth when they're spawning which would fit the season. There's the web page where I got the bottom photo from:

http://www.biosurvey.ou.edu/okwild/misc/warmouth.html

I took the top photo and posted it on the North American Native Fishes website and two members had no doubt that it was a Warmouth. They seem to know their fish.

Apparently GSF aren't indigenous here, but WM are. It's been my goal from early on to stock local fish so........................

does this mean I'm out of the club? Oh the pain and embarrassment!

Time to research Warmouths I guess. Can anyone offer comparisons to GSF?