If the two pics are of different fish, I'd suggest that #1 could be a blue, but the angle in that photo is just enough off to eliminate a positive ID... I'd lean towards it being Cyprinella callistia, though. But, if the two photos are of the same fish, it's definitely Cyprinella callistia (despite the prominent stripe in the first photo...). The head and body on photo 2 are the wrong shape for C. caerulea -- body too rounded in cx, head too short and blunt; both the mouth shape/orientation/position and that two-tone caudal spot (lighter on front 1/2, darker on back 1/2) are diagnostic.
Be careful out there-- if there's any doubt of the ID, I'd be hesitant to even drop it in a photo tank. Better to err on the side of caution than to wind up in deep trouble with USFWS.
Or Matt Ashton in post #7 ...I kid, I kid...
But seriously, Dave is right by erring on the side of caution; that is one area where I look and don't touch. I was THAT hesitant with a blanket TN State and federal permits when I had no intentions but being there, seeing, snapping a few underwater photo's, and taking some notes.