Impulsive buy! Need help identifying what breed my chicks are.

[Purebreed]

A weeks ago my grandfather impulsively bought some chicks from TSC as a gift, and when i mean some I mean 110+ baby chicks. I managed to figure out some of the chicks breed, but there were 3 that left me wondering. Here are the pics below.
1st chick

2nd chick

3rd chick

And here's them together

 

[Gray Farms]

Black Sexlink
Not sure
White Leghorn