The types I thought I purchased
1) starlight green egger
2) easter egger
3)olive egger
4) prarie bluebell egger
5) blue australorp
6) Golden comet
7) red cross
From that list, I can sort them into a few groups:
2) henny-penny - red cross ?
3) chicky - golden comet ?
4) Dale - egger ?
These three have a lot of red or brown in their coloring.
They should be the Golden Comet, the Red Cross, and probably the Starlight Green Egger, since those seem to generally be red/brown as well.
I think that you are probably right about Chicky being the Golden Comet, because they often have white in their tails and the big feathers of their wings. That would leave Henney-Penney and Dale to be the Red Cross and the Starlight Green Egger. I do not know for sure which is which, but you could easily be right about Henney-Penney being the Red Cross, which would leave Dale as the Starlight Green Egger.
5) thunder - blue australorp ?
6) storm - egger ?
7) penguin - egger? Blue Australop?
These three all have blue in their coloring.
I would expect one to be the Blue Australorp.
I can't see their combs in the photos, but I can say that an Australorp would have a single comb. So if any have not-single combs, those ones are something else.
Australorps should have white soles on the their feet (typically shows on the toes as well). Any chick with yellow soles on the feet would be one of the other types. I think I see two with white toes, maybe three (I'm less sure about Penguin). So that doesn't help very much.
That leaves these types to go with two blue ones plus Snowball:
2) easter egger
3)olive egger
4) prarie bluebell egger
I would expect to see pea comb on the Prairie Bluebell Egger, and maybe on the Easter Egger and/or Olive Egger. All three of those have a chance of muff/beard on the face as well. The Easter Egger and Olive Egger have a chance of crested heads too.
Any of those three kinds could have blue feathers, so the coloring doesn't rule anything out there.
Sometimes hatcheries cross Cream Legbars with other breeds to create Easter Eggers and Olive Eggers, and that produces chicks with a crest on their head (although it usually lays backward rather than standing up and sticking forward like Snowball's.) But Snowball could possibly be an Easter Egger or Olive Egger.