My father is on the left and Sam is on the Right. Fishing in Alaska. Joseph Coleman Reynolds Jr. was a mining engineer and worked for the U.S. Smelting Mining and Refining Co Fairbanks Exploration Department arount the 1937 era. I assume Sam's last name is Berger as there is another photo at a mining location with "Sam Berger at Cripple Creek" The back of this photo here is merely labeled "Coleman's friend Sam"
Make sure you look at the other Alaska photos I have been posting. I have a lot of mystery men and miners of AK