Ahh... that time in our history where even the drunks were sensibly dressed.
Sheesh! I do one little search into my ancestry, and people just have to post the pics all over the web.
most of them are in their mid 30s, and yet to me they look a lot older. But then there are a few who are in their 60s, and seem to be about 50. apparently back then people aged rapid, then kinda plateaued for a while.
also, I swear I know the middle guy in your set.
Apart from generally improved health, I guess easily-available cosmetics have reshaped the appearance/age curve so that it's flatter for longer earlier.