Jim vs. James: who’s who?

How to distinguish between James and Jim Newberry
James and Jim
Three Men, photo by James Newberry
James Newberry at home in McKinney, Texas, April 2009. Photo by Jim Newberry.
Jim Newberry self portrait. Austin, Texas, March 2009.
James Newberry teaching a photography class at Columbia College (Chicago) in September, 1968. Photo by John Hora.