Edmond C. (Buck) Buckley, 73, an official for more than 35 years with the National Aeronautics and Space Administration and its predecessor agency, died Saturday at Bethesda Nursing Center of Parkinson's Disease.

While with NASA, Mr. Buckley held the position of associate administrator and was responsible for the design, development and operation of NASA's worldwide networks of tracking and communication stations.

Born in Fitchburg, Mass., he received his degree in electrical engineering and did graduate work at the California Institute of Technology.

His career with the National Advisory Committee for Aeronautics, NASA's predecessor, in Langley, Va., began in 1935. He developed research instrumentation used in aeronautical research and helped developed the Wallops Island Station at Chincoteague, Va.

In 1958, when NASA was formed, Mr. Buckley moved to Chevy Chase, his home at the time of his death. He retired in 1969.

He received NASA's highest award, the Distinguished Service Medal, in 1968.

Survivors include his wife, Mary Lynn, and a son, Douglas M., both of the home; and a daughter, Kathleen B. Cochran, of Hagerstown.

The family requests that expressions of sympathy be in the form of contributions to the Georgetown University Parkinson's Disease Research Fund.