As G*d is my witness I would have bet good money he came from the Senate. I guess because he acted and governed so much like one.
I respect the man but found his governance to be squishy and compromising to the extreme.
You are close tho. George H.W. was born to Senator Prescott Bush and wife and after being the youngest Naval Pilot in WWII, then graduating from YALE, forming his own Oil Company in West Texas and becoming a self made Millionaire by the time he was 40, he entered politics and was elected to the House of Representatives, before serving as Ambassador to China, CIA Director and then V.P. for Ronald Reagan:-) Quite a career!