1970s
Knoedler, Bob
September 29 1934
Lozier, J. S.
March 27 1957
Steinbrecher, Harold F.
March 25 1986
Sidwell Company
June 15 1955
Howard T. Fisher & John D. Randall Associates, Inc.
1980s
W. A. White Associates
August 1984
Sheaffer and Roland, Inc.
August 1984
Sheaffer and Roland, Inc.
September 11 1986
C. Edward Ware Associates, Inc.
September 11 1986
C. Edward Ware Associates, Inc.
September 11 1986
C. Edward Ware Associates, Inc.
September 23 1957
Robert E. Hattis Engineers, Inc.
September 23 1957
Robert E. Hattis Engineers, Inc.
September 1969
Sheaffer and Roland, Inc.
September 1969
Sheaffer and Roland, Inc.
circa 1988
Tyznik, Anthony
December 7 1989
Steinbrecher Jr., Harold F.
circa 1990
Tyznik, Anthony