Aww! Have any idea what kind of puppies they may be? I'm glad you chose to give them a chance. I believe even feral animals have a chance to be socialized. Every single one of my cats were feral and if you looked at them you would never be able to tell the difference even the ones we got as older cats.
as they got older it looks like they were lab beagle mix from what I hear they've all been placed in homes so this story seems to have ended well.