Question:
Which position did Sir Herbert Williams, 1st Baronet hold in Mar, 1952?

Context:
 Sir Herbert Williams, 1st Baronet holds the position of Member of the 36th Parliament of the United Kingdom from Feb, 1932 to Oct, 1935. 
 Sir Herbert Williams, 1st Baronet holds the position of Member of the 34th Parliament of the United Kingdom from Oct, 1924 to May, 1929. 
 Sir Herbert Williams, 1st Baronet holds the position of Member of the 40th Parliament of the United Kingdom from Oct, 1951 to Jul, 1954. 
 Sir Herbert Williams, 1st Baronet holds the position of Member of the 37th Parliament of the United Kingdom from Nov, 1935 to Jun, 1945. 
 Sir Herbert Williams, 1st Baronet holds the position of Member of the 39th Parliament of the United Kingdom from Feb, 1950 to Oct, 1951.

Answer:
Member of the 40th Parliament of the United Kingdom