The Chautauqua Movement consisted of popular educational summer 
camps. These certainly regarded the temperance cause favorably, and 
meetings may have been characterized as "temperance camps."

The movement started in southwestern New York, on the shores of Lake 
Chautauqua, in 1874. The first meeting attracted 25,000 visitors from 
25 states, with daily attendance estimated at 4,000 people. President 
Grant attended the second meeting, in 1875, and Frances E. Willard 
attended the third meeting, in 1876. Independent assemblies organized 
after the Chatauqua model began to appear as early 1876. I draw these 
details from a paper written by my father, George Miller (Dept. of 
English - Univ. of Delaware). He knows a lot more about the 
Chautauqua Movement than I do. Your librarian friend might contact 
him if this sounds like a match or a good lead for the mysterious 
"temperance camp" in Maryland.

Jon
-- 
Jon Miller, Asst. Prof. of English, Dept. of English, Univ. of Akron, 
Akron, OH 44326-1906. office and voice mail, 1-330-972-5717.