The combined Columbia Record + Veterans Affairs hospital listing of April 24, 1969, recording Constantine’s role in orthopedics at a VA hospital. This is the document that finally answers the long-standing open question on his surgical specialty: Constantine was an orthopedic surgeon.
Sophie’s 1960 statement (“we are aware that the life expectancy of surgeons is extremely low”) had hinted at his surgical career; this 1969 listing makes the specialty explicit.