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Portrait of John Kernan Mullen, Denver, Colorado business man and philanthropist, in a tuxedo and black tie.

Studio bust portrait of Catherine Smith Mullen (Mrs. John Kernan Mullen) in a lace blouse and dress with a banded collar and a necklace. Mrs. Mullen has short, wavy hair.

View of the John Kernan Mullen house at Lawrence and 9th (Ninth) Streets in the Auraria neighborhood of Denver, Colorado. The two-story brick house has a hip roof, chimneys, and covered porches.

J.K. Mullen

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