Actually both Pierce and ACD (Duesenberg - greatest car ever; and yes, I went to 2 ACD Labor Days a long time ago) died when those types were born.
My parents - no direct knowledge of them from their childhood.
People most likely to hold onto any possible memories are about 80+ now.
We watched the “Bloomington Gold” Corvette parade here in Indiana last month (over 1000 cars). I told my SIL there will be some cheaper Vettes in 20 yrs because all the current owners will be dead or to crippled to climb in.