My daughter, who lives in Berkeley, and I were invited by my friend, a son of the late philanthropists, to see this exhibit and attend this event.  We heard from two biographers of Vivian Maier who know about this story of her posthumous fame, mostly through the internet.  She died in 2009 and only now are we appreciating what a prolific and talented photographer she was, despite what many would consider a rather unremarkable life that she led.  This was presented by the Reva and David Logan Gallery of Documentary Photography at the UC Berkeley School of Journalism.