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In 1866 John Proctor & John O'Shaughnessy engaged Charles Waldack, a well-known Cincinnati photographer of cartes de visite and stereographs, to take pictures of Mammoth Cave. Forty-two stereoviews were published by the New York Company of E & H. T. Anthony. In addition to the Anthony views, other views were published by Charles Waldack and Proctor & O'Shaughnessy.
Five of these images in the author's collection do not appear in the 42-view Anthony set. A third set of seven unpublished views, from an unknown source, have larger-size images showing more of Waldack's original glass plates. All of the non-Anthony views have separate chips for each side stereoview. On the Anthony cards, both sides of the image are on a single photograph. The Anthony Cards were published until 1872 and show a variety of styles over time.
Waldack took two trips to Mammoth Cave which he described in two letters sent to The Philadelphia Photographer in July and December of 1866. Waldack never returned to the cave, but took many additional stereo views of Cincinnati and its suburbs.
Michael McEachern