Question:
Which employer did Enrique Tierno Galván work for in Jan, 1950?

Context:
 Enrique Tierno Galván works for University of Murcia from Jan, 1948 to Jan, 1953. 
 Enrique Tierno Galván works for University of Salamanca from Jan, 1953 to Jan, 1965. 
 Enrique Tierno Galván works for Princeton University from Jan, 1966 to Jan, 1967.

Answer:
University of Murcia