His service terminated due to death on May 30, 1979.

His service terminated on July 12, 1975, due to death.

His service terminated on March 31, 1947, due to death.

His service was terminated on February 6, 2004, when he died.

Allen terminated his service on the board before the end of 2000.

The space flight program was terminated on 8 April 1972.

His service terminated on January 26, 2004, due to death.

His service terminated on January 12, 1981, due to death.

His service was terminated due to death on October 29, 1977.

His service terminated on April 16, 1973, due to death.