Another somewhat high profile of completing a PhD later than most is Brian May, guitarist for Queen, who completed his PhD in astrophysics more than 30 years af

Another somewhat high profile of completing a PhD later than most is Brian May, guitarist for Queen, who completed his PhD in astrophysics more than 30 years after starting graduate studies. http://en.wikipedia.org/wiki/Brian_May#As_an_astrophysicist http://en.wikipedia.org/wiki/Brian_May#As_an_astrophysicist