Read this: The Duke and Duchess of York had two children: Elizabeth (called "Lilibet" by the family), and Margaret. The Duke and Duchess and their two daughters lived a relatively sheltered life at their London residence, 145 Piccadilly. They were a close and loving family. One of the few stirs arose when the Canadian Prime Minister, R. B. Bennett, considered the Duke for Governor General of Canada in 1931—a proposal that King George V rejected on the advice of the Secretary of State for Dominion Affairs, J. H. Thomas.

Who advised against the Duke becoming the Governor General of Canada? 
What is the answer? (If it cannot be answered, return "unanswerable")
J. H. Thomas