Just a note to Jennifer Schansberg with apologies to everyone else because I can't seem to get through to Jennifer's personal address. The University of Delaware offers a Ph.D degree in history that allows one to concentrate on Museum Studies. In my own case, for example, my first two fields of study were recent American history and early American history. My third field was modern British and my fourth was museum studies. This also resulted in a Certificate of Completion from the Museum Studies program at the U. of D. The U of D/Winterthur Program also offers, I believe, a Ph.D in American Civilization which I'm sure has a material culture focus.