Even having upgraded to a newest version of the game since I last posted here (which did help a lot with the "reaching age 65" trophy, got that one only after 3 generations or so this time around), I still haven't managed to get peeps to live past 66 (I've had three of them die at age 66 over the 6-7 generations I've been playing this family).
All peeps in this family have lived to be at least 60, though (which is also an improvement from the older version - I had peeps die at ages 56-59 quite often back then).