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.