Mr. Prater in darkroom, portrait, photograph

Sidney Robertson Cowell notes on verso of photograph, 1938: "Mr. Prater, our wonderful Welsh photographer on the California Folk Music Project, who built the darkroom, did all our developing, printing, and enlarging for performers and the microfilm prints of California songsters from various libraries."
Sidney Robertson Cowell notes on verso of photograph, 1973: "As a photographer since 1956, I appreciate the darkroom and Mr. Prater's work much more than I did at the time. He was a real pro, did everything I asked, sometimes before I asked, efficiently and quietly--everyone liked him, and his consistent calm and cheerfulness belied the Welsh reputation for excitability."
Forms part of a group of field materials documenting the WPA California Folk Music Project in Northern California, collected by Sidney Robertson Cowell from 1938 to 1940.