„What was good about Bill was that whenever he wrote a plot, he did a lot of research for it. Whether the setting was a railroad station or a factory, he would find a photo reference, usually from National Geographic, and give Bob all the research to draw from. He was very orderly and methodical. His only problem was that he couldn't sustain the work… he couldn't produce material regularly enough“
— Bill Finger
About, George Roussos as quoted by George Roussos in Gruenwald, Mark (April 1983). "George Roussos". Comics Interview (2) (Fictioneer Books). pp. 45–51.