He then served on the staff of the college for almost 20 years.

He also served on the staff during 1969 and 1970.

He served on the presidential staff from 1957 until 1969.

In all, he served 42 years on the pastoral staff.

There, he served on the president's staff with the rank of major.

In 1936, he served as colonel on the staff of the governor.

He also found time to serve on the staff of four other medical facilities, and maintain a private practice.

From 1975 to 1978, Roberts served on the congressional staff.

He was one of the very few top German generals not to have served on the general staff.

Rather, he served on the staff of various regional governors.