There is, of course, the unquenchable smile and the upthrust chin that denotes a Depression-defying optimism, along with the pince-nez glasses perched at an angle so close to horizontal that this Roosevelt sometimes seems focused on the ground in front of him.
The great upthrust of the immigrant working class into the middle class after World War II, via the GI Bill, was stopped stone cold by the events of the autumn of 1973, when the October war in the Middle East led to the quadrupling of oil prices virtually overnight and the great inflation set in.