From reading through the Creve thread it sounds like our girls are black Polish. They look similar to Crevecoeurs but they don't have the red face.
Thanks for all the input everyone!
We have a couple of chickens that came from what was supposed to be a bantam batch at TSC. My nephew (a 4-H kid) said they look like sultans. Both are black (with a bluish tingle in good light) but neither of them seems to have developed foot feathering yet (at 6 months old).
Here are a couple...