These are Native American cold water fish, there are several very knowledgeable people who frequent this specific forum, i would think that this is the most likely place to get an ID. Also these fish are very rare in the hobby, though not exactly rare in there native ranges.
try posting the picts on this forum, those guys may be of further help
I agree with Hmt, this is the better forum for native catfishes. The guys in the Catfish forum deal with tropical catfish more so then natives. I also think it is a snail or spotted.
i would say yes the first and last pictures look like a spotted, while the two others look like browns, but not 100% sure, count the anal rays that will tell you if it is a brown or spotted