http://pec.lib.wvu.edu/record/P174852011Collection of Royce J. and Caroline B. Watts Museum materials. Collection. Includes an exhibition reception invitation and research bibliography for the 2011 exhibit: Helmet Men: Mine Rescuers of Appalachia's Coalfields. Some materials are undated. <br />West Virginia University. Royce J. and Caroline B. Watts Museum.14255