Need a little help identifying these sigs
 

Pick up about 100 3x5 recently. Most were labeled and a few were not. I am down to these 2 that I can’t figure out. Most of the sigs were from the late teens through the 1960’s. Any help would be greatly appreciated.Attachment 400137

Top one is Ron Plaza .

Bottom one appears to be a real sloppy Travis Jackson

Travis Jackson?

It's Mike Guerra.

Thank you for all the help. You are amazing!!