You are right, Aimée really sound as a name from the roaring twenties. It is a nice name: its pronunciation (in French) is quite mellifluous and it means "loved". Surprinsingly, these names are somehow going throught a revival amongst a certain population in
France and I would not be surprised to see more of them (
Clement, Grégoire,
Antoine,
Adrien,
Claire,
Julie,
Valentine ...).
However
René is more typical from the forties and fifties: I think it will have to wait for a few decades to become popular again (like André,
Georges, Agnès...)