A young man joined the Army Specialized Training Program, earned his medical degree in 1944 as an Army private, and finished a civilian internship in 1945 just as the war in Europe ended. His service in occupied Germany is undocumented, but he later joined a Penn pediatrics department tied to the Army's wartime hepatitis work and became second author of the 1969 paper behind the world's rubella vaccine strain.
The identity of the senior officer the family remembers in Germany is unknown and unguessed, and so are the unit, branch and dates of service. Whether an Army hepatitis center ever opened in Germany is unconfirmed.