2013 links are dead.

http://www.loc.gov/pictures/item/2004672477/

Summary: Proof of lantern slide that illustrates lyrics to the song Yonkle, the Cow-Boy Jew by Will J. Harris (composer lyricist) and Harry I. Robinson (composer) shows Yonkle Finkelstein standing in wilderness area, posed for camera with right foot on captured or dead Indian.

Sincerely,
Gargoyle