I believe Bobby Herman's natal name was Victor Grieco, and that he was Bill Grieco's grandfather. I remember Bill asking me years ago if I had any info on Bobby Herman's California bouts. Young Grieco is quite a fight fan, and has been for many years.
Do you know Bill? Or is there some way to find out if Bill has a copy of the photo you just posted? I think he might be interested in anything pertaining to his fighting grandpa.