Question:
Who was the head of Annemasse in Apr, 1946?

Context:
 Jean Deffaugt is the head of the government of Annemasse from Dec, 1943 to Oct, 1947. 
 special delegation is the head of the government of Annemasse from Jun, 2015 to Jul, 2015. 
 Robert Borrel is the head of the government of Annemasse from Jun, 1997 to Mar, 2008.

Answer:
Jean Deffaugt