Question:
Which employer did Jean Vercoutter work for in May, 1969?

Context:
 Jean Vercoutter works for National Center for Scientific Research from Jan, 1949 to Jan, 1955. 
 Jean Vercoutter works for University of Lille from Jan, 1960 to Jan, 1976. 
 Jean Vercoutter works for Louvre Museum from Jan, 1941 to Jan, 1945.

Answer:
University of Lille