Martha looks like she is a Production Red. Blossom looks like a Buff Orpington. And Dandelion looks like a Silkie. I'm not sure about the last group. It's a bit young to tell, so don't take my word for it though. Good luck!
(Your chicks are very adorable and look healthy!). It is good that you are allowing them outside, I think it makes them better prepared for the coop....it's what we've done with our chicks