Dr. Henry Chung

A magic lantern slide or glass transparency, take your pick.  Labeled on the front, "Made by Committee on Conservation and Advance, 740 Rush St., Chicago, Ills."  And on the back, "Neg. 89658 Slide 56  Leet. X-Hermit  Dr. Henry Chung"

A search for Dr. Henry Chung didn't get me much.  There are a lot of Dr. Henry Chungs out there.  And that's just in the United States.  A search for Committee on Conservation and Advance, on the other hand, was a bit more fruitful.  The Committee was a branch of the Methodist Episcopal Church  that was active in Korea from 1908 to 1922 and was very successful in converting Koreans to Christianity.  The Methodists, and other Christian church missionaries, were so successful that Korea is one of the most Christianised countries in Asia.  

But the real find was at digitallibrary.usc.edu/search/controller/collection/kda-m7.html, The Reverend Corwin and Nellie Taylor Collection, a group of glass slides documenting the Committee on Conservation and Advance's activities in Korea.  It's part of the Korean Heritage Collection at the University of Southern California.  It's easy to access and well worth a look.  The only problem I had with it was that it made me want to find all the images in the collection and that's a daunting task.  And one more bit of information.  I found this slide in the USC collection.  Dr. Chung is listed as the author of The Case of Korea.  Don't know whether that's a book or a pamphlet; whether it's about Korea's political situation or about Christianity.  Whatever it is, it doesn't have an internet presence.