Hi Rod, When I retired in 1992, I did some volunteer work for the Smithsonian in D.C. It was a project that I participated here in Pittsburgh, and the main object was to catalog every piece of outdoor sculpture in the US. I have no Idea if the Smithsonian has a data base available to cross refer Harbaugh's name. If you care to check with them, the project was called "SOS", for "Save Outdoor Sculpture". Larry Hunt Pittsburgh, PA