Clark later became a major in the Air Force Reserve.
He rose to major general in the Air Force Reserve.
He became a major general in the Air Force Reserve.
He then became a member of the Air Force Reserve.
He retired from the Air Force Reserve as a major general in 1970.
The Air Force Reserve took on a new mission in 1979.
There are several categories of service in the Air Force Reserve.
He was also a sergeant in the Air Force Reserve.
He then served in the Air Force Reserve until 1975.
He was in the Air Force Reserve from 1969 until 1972.
Clark later became a major in the Air Force Reserve.
He rose to major general in the Air Force Reserve.
He became a major general in the Air Force Reserve.
He then became a member of the Air Force Reserve.
He retired from the Air Force Reserve as a major general in 1970.
The Air Force Reserve took on a new mission in 1979.
There are several categories of service in the Air Force Reserve.
He was also a sergeant in the Air Force Reserve.
He then served in the Air Force Reserve until 1975.
He was in the Air Force Reserve from 1969 until 1972.