One of the topics that came up was the idea of how important having images can be for our ability to understand and envision our own history. The documentary photography movement that started in the 1930s continued and grew through the 1940s and lasted until the start of the McCarthy era blacklisting. Here are some images that are tantalizing, referencing as they do sharecroppers who work collectively as a cooperative.
https://rarehistoricalphotos.com/black-sharecroppers-south-1939-1941/
Collective Production 