Porter served as Secretary until the end of Keating's term in 2003.

Porter served in that capacity until January 5, 1989, due to his death.

In addition to his research, writing, and teaching, Porter serves as an advisor to business, government, and the social sector.

Porter served for four years as the chief engineer under guitarist and producer Atkins.

Porter served as a director of the Sierra Club from 1965 to 1971.

Porter served in that capacity until November 6, 1991, due to his death.

Porter has served as the arena voice for the Magic since the teams inception in the late 1980s.

Porter served as reeve for Amabel from 1880 to 1883 and in 1885.

Porter served in that capacity until February 17, 2003, due to his death.

Porter served in leadership positions on numerous professional and governmental committees.