(Click on image to enlarge)
Image courtesy of Eldon Harms.
They weren't dressing that way for Halloween — it was their costume for a performance by the W.G. Haan students of an operetta, Seeing Nellie Home, in May 1937.*
The two boys were Eldon Harms and
*This seems to be the gist of the notes on the back, but I haven't been able to locate any such operetta. "Seeing Nellie Home" may have been a featured song rather than the name of the operetta.
**[11/4/2014 update] Whoever wrote the notes on the back of the photo was wrong, or so Eldon Harms has told me: it was Delmer "John" Foreman under that donkey suit with him, not Lorin Butt. And they took turns playing the front and the back of the donkey.