William Hartmann is founder of the Planetary Science Institute, where he is now Senior Scientist. Dr. Hartmann is an alumnus of the University of Arizona and of LPL: "I came in 1961,when LPL was located in the Physics, Math, and Meteorology Building, PMM. A group of us were located not in PMM but in a Quonset hut called T6, for Temporary Building Number 6. It was a sort of cylindrical shaped structure, on the present location of the science library. We used to have jokes about Kuiper flying into a tizzy over something and saying 'Call T6, call T6' because a bunch of us graduate students over there were either about to be chewed out or he needed us to do something."