Catfish not so much. I know of Larry's fish farm is FL but I don't think they ship. There is this one in Delaware http://www.delmarvaaquatics.com/index.html. Also a couple in CA, http://www.proaqua.com/?cf=pricelist but I've had trouble getting consistent communication. For redclaw check out ttp://farmingcrawfish.com/crawfish_redclaw_crayfish/farming.html . Be sure to give us some feedback if you find someone!
I ended up finding a place about 55 minutes from my house.
Keystone Hatcheries: http://www.keystonehatcheries.com/