HOWARD HUGHES MEDICAL INSTITUTE 
OFFICERS 
SEPTEMBER 1, 1988-AUGUST 31, 1989 
PurneU W Choppin, M.D. 
President 
George F. Cahill, Jr., M.D. 
Vice President for Scientific Training and 
Development {through June 30, 1989) 
Assistant to the President and Senior Scientific 
Officer (effective July 1, 1989) 
W Maxwell Cowan, M.D., Ph.D. 
Vice President and Chief Scientific Officer 
Graham O. Harrison 
Vice President and Chief Investment Officer 
Joseph G. Perpich, M.D , J.D. 
Vice President for Grants and Special Programs 
William T. Quillen, Esq. 
Vice President and General Counsel 
Robert C. White 
Vice President and Chief Financial Officer 
Kenneth E. Wright 
Executive Director of Research Administration 
PRINCIPAL STAFF MEMBERS 
Stephen A. Barkanic 
Program Officer 
W Emmett Barkley, Ph.D. 
Director of Laboratory Safety 
Lillian H. Blucher 
Managing Director— Investments 
Winfi-edJ. Clingenpeel 
Director of Purchasing 
Barbara Filner, Ph.D. 
Program Officer 
Patricia S. Gage, Esq. 
Assistant General Counsel 
Donald H. Harter, M.D. 
Senior Scientific Officer 
David W Kingsbury, M.D. 
Senior Scientific Officer 
Laura A. Kumin, Esq. 
Assistant General Counsel 
Robert H. McGhee 
Director of Research Facilities Planning 
Alan E. Mowbray 
Director of Management Services 
Robert C. Mullins 
Director of Internal Audit 
Edward J. Palmerino 
Assistant Controller 
Robert A. Potter 
Director of Communications 
Donald C. Powell 
Director of Human Resources 
EUen B. Safir 
Managing Director— Fixed Income 
Dianne R. Sagner, Esq. 
Assistant General Counsel 
Joel M. Samuel 
Director of Information Systems 
Mark W Smith 
Controller 
Claire H. Winestock, Ph.D. 
Science Administrator 
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