I have received the photo and message below from Suzanne Frederick-Bird.
Hi, Would love to know more about this photo. My grandfather is second from the right back row. i.e.,first man on right back row without a shirt. His name was Jake Frederick of Georgetown. He earned a few shillings as a fist fighter, sometimes walking to Rhymney to fight.
If anyone has any information about this photo, please contact me at merthyr.history@gmail.com and I will pass it on to Suzanne.