Hans Mark, Ph.D.
Former Executive Director NASA Space Program.
Secretary of Air Force
Chancellor Univ. Texas

- Dr. Feinerman,M.D. attending the 80th birthday celebration of Hans Mark, Ph.D. -

Dr. Feinerman, M.D., and
Jonas Salk, M.D., Ph.D
- Medical researcher and virologist, best known for his discovery and development of the first safe and effective polio vaccine. -