Dennis Lindley has just passed away.  Lindley was a very influential 20th century Bayesian statistician.  He was a passionate advocate for Bayesian statistics, arguing for the use of proper subjective priors and for the specification of utility functions.  Among other accomplishments, he supervised the PhD dissertations of José Bernando and Adrian F.M. Smith.

Wikipedia article on Dennis Lindley
Adrian Smith's interview with Dennis Lindley
Statistics Views interview with Dennis Lindley
Get Stats interview with Dennis Lindley
Math Genealogy Project Dennis Lindley page

Getstats Picture of Dennis Lindley