By the by . . . I wanted to share what an amazing resource this is. Charles Eisenmann took photos of many circus acts and attractions, not just the tattooed, and the Becker Collection of Charles Eisenmann photographs at Syracuse is filled with simply gorgeous victorian photos (and this archive's treasures don't come up in google searches).
To me, this is a perfect example of why the Internet and a few google searches are not "good enough" when it comes to academic research--regardless of topic or skill set. As a colleague of mine is known for saying: "Dig deeper."
The Ronald G. Becker Collection