Looks like a Carolina Dog to me. Good luck with the puppies. I have my hands full here right now with abandoned dogs from hurricane Katrina, they're everyehere.
I hope you can find homes for them... I just wanted to post this to get the attention of some freepers. I know alot of us are interested in breeds like this. I am an Archaeologist and couldn't believe that this type of dog might show up on my door step. This summer I dug up hundreds of canine skeletal remains at a native american site in North Georgia and to think that this dog is probably related to those amazes me. :)