So I'm guessing are these all siblings? Are you planning on breeding them together?
I'm not really one for close inbreeding, but right now I do have a rooster in with his mother, full sister, and a half sister ( she is actually his cousin also). Trying to see what I'll get from these crossing. There are also 5 other hens in with him. I'll be gathering eggs from that run for the Easter Hatch.
In my opinion, there's nothing wrong with close inbreeding when done judiciously...but you must know what is held in the genetic packages you're working with and have a pretty good idea what you are looking to accomplish.