Complex sentence: Forrest David Mathews (born December 6 1935) served as Secretary of the United States Department of Health, Education and Welfare from 1975 to 1977, during the administration of President Gerald R. Ford.
Split into simpler sentences: Forrest David Mathews (born December 6 1935) served as Secretary of the United States Department of Health, Education and Welfare from 1975 to 1977. He served during the administration of President Gerald R. Ford.