There are a LOT of Corgis on Craigslist all over Texas. I run a group on Facebook, Craigslist Corgis, and it really seems that the majority of the purebred Corgis we reblog are from Texas... We'd love to see you in the group :)
Sure thing lol :)
I would start here!: http://www.ghpwcf.org/Greater_Houston_Pembroke_Welsh_Corgi_Fanciers...
http://dallas.craigslist.org/ndf/pet/3278520925.html I dunno how far this is from you, but he was posted recently and he is free :) No pic though, though you can always ask for pics! (I hate seeing them posted for free because often free dogs are used in less than kind ways.. Bait dogs, etc.. There were people from my previous city who were picking up free pets and taking them out and shooting them for fun... Sick and twisted!)
It is horrible! Let me know if you hear anything back and if you are going to procede with him :) I'm so nosey with Corgis haha
http://austin.craigslist.org/pet/3365206324.html There is another Corgi :) Dunno how much they're asking for a rehoming fee, but it'd be cool if he got a responsible owner, who will neuter him lol :D
I would start with the local club that Ingrid posted. You can also try the pwcca.org website, they have a list of breeders by state as well. Try to look for someone that is showing or working their dogs in some other venue, and does health testing.