Truly a facinating thread and it's to bad 411A isn't around to enjoy it.
My recollection of the up/aft and off switches that dominated TWA and Lufthansa Boeing aircraft of that time was from spending a copius amount of time in some old Lufthansa 727-100's which had a few other unusual items as I recall. The Lufthansa spec probably comes from the early days when TWA was providing technical assistance to Luftansa after they restarted operation in the early fifties after the end of WWll. I suspect that if one could look, they would find that the Constellations of these two airlines had a lot in common as this where first technical assistance occured in both the 1049 and 1649 airliners.
I was lucky enough to have flown both the DC10 and L1011 having about 4000 hours in each type as PIC. To me from a purely pilots point of view, the L1011 was a superior airplane to the DC10.