Quick internet searches indicate John Rudolph Zweifel was a Duluth-based photographer from the very late 1800s to the mid 1900s. He had a few different offices on West Superior Street and was in the Phoenix Building circa 1918-’20. His home was at 4231 McCulloch St.

Who are the round-faced darlings in the photo? Well, that’s the Hail Mary pass being thrown here for the hell of it, just to see if anyone can figure it out.