Got some mystery hens. I think maybe Australorpe, Cuckoo Marans, lavender Orpington? Black one apparently lays chocolate eggs though.. should be standard hatchery breeds/mixes but she doesn't know what.
Not sure on the black one, but the brown one looks like a Cuckoo Marans and the gray one looks like a Lavender Orpington. Could be a light blue Orp because of the darker head but my hatchery Lavender Orp looked a lot like this.
Blue one is not an Orpington-it has yellow legs. Likely a Production Blue or Sapphire Gem. Your barred bird is not a Marans due to its yellow legs too-it's a Barred Rock. The black hen is likely a Black Marans if laying chocolate eggs