Some thoughts along what Matt said. Loren has indicated shooter: medium format so it is possible that the original negative was square format giving him option for various cropping situations. Also being a predominately square medium format shooter myself, I will purposely include extra information that I can crop when printing as well as not noticing something when making the original exposure often to a pleasant surprise. As an example, until I cropped and printed this image I didn't notice how many stripes on all the peoples clothing there was since I was concerned about catching the right moment.