UNH is the University of New Hampshire. The collection of square dance historical material is at the Milne Special Collections Department which is a section of the UNH Library. To link to the general Library use http://www.library.unh.edu/
To look for records use:
http://www.library.unh.edu/special/search/advanced.php?t=nhltmd 
To go to the Square Dance Foundation of New England collection at UNH go to:
http://www.library.unh.edu/find/archives/collections/square-dance-foundation-new-england-collection
 
In a message dated 7/25/2016 3:04:00 P.M. Eastern Daylight Time, trad-dance-callers@yahoogroups.com writes:
 

What is UNH?  And wversity of New Hampshireis the Unihat is the URL?
thanks

Jim Tait, canton MI
square dance caller