Geez .. they were every where
"As much as any politician, Pepper had reacted slowly to geopolitical shifts that followed World War II. The Soviet Union, once an ally, had taken over Eastern Europe and stolen the United States' atomic bomb secrets. While Truman expanded the military and created NATO, Pepper urged cooperation. He praised Joseph Stalin and appeared at peace rallies with American Communists."
Shortly before, during and after WWI, the communists and their bastard offspring, the Progressives gained strongholds across and up and down America. This love of the communists went to a holding pattern during WWII. After WWII, it started to come back out both as open communists, so called Progressives and a$$holes like Pepper and most of Follywood.
They were all over then and probably a lot are still left (pardon the pun).
Yep. The modest beginnings of the modern Democratic Party.