Irving Kahn is another example of someone who worked, I believe, until he died at 109. Famous investor, was a TA in Ben Graham's course when Buffett was a stude

Irving Kahn is another example of someone who worked, I believe, until he died at 109. Famous investor, was a TA in Ben Graham's course when Buffett was a student (the latter is now 91), and worked in fund management from 1928 (good timing) until 2015 (87 years in all)...but not at the same company. Not everyone finds themselves in the kind of job that they are happy to do through old age, but it is nice to see when it happens.