Wow. Wonder what happened to those pictures that your group took.
I am not sure I took any, this may have happened after my camera was borrowed - permanently. I never saw any of the members of our expedition again. Remember this was over 60 years ago. We had no cell phones, and I have no idea how long it would have taken to get film developed and copies made in a small southern Mexican town. I left 2 or 3 days later.