Phone: 412-681-8398
Fax: 412-268-6298
Office: 6707 Gates-Hillman Complex
Carnegie Mellon University
5000 Forbes Avenue
Pittsburgh, PA 15213

Secretary: Not really


  • I met my wife Julie (née Van Allen) at Vassar College in 1968 and we have been together ever since. We were married in 1973 in Washington, DC and renewed our vows on the island of Tobago in 1998.
  • Our daughter Josselyn was born in 1982. She has a B.A. from Chatham College and an M.A. in Communications from Ohio State. She married Dan Crane in 2008. They live in the Shadyside area of Pittsburgh, less than 3 blocks from our house. Their daughter Harlow was born on April 9, 2010.
  • Our son Alexander was born in 1984. He lives in Tucson and is a student at the University of Arizona.


I love travel and have visited 64 countries and 47 Caribbean islands:

The format of this home page was designed by Duen Horng ("Polo") Chau for Prof. Brad Myers of the CMU Human-Computer Interaction Institute.