-Architectural and Urban historian.
-Degrees: Columbia A.B. 1955; U.Penn M.A.1968, Ph.D. 1977.
-Senior Fellow at CASVA 1987-89
-Main residence: Rome since 1960, with yearly summer returns to the U.S.
-Taught for Rome programs of Cornell, Pratt, and currently for Penn State.
-Opened the Studium Urbis research center on Roman urbanism in 2000.
-Confirmed cyclist (no car since 1982)