I hadn't been explicitly aware of Jim Marshall until The Online Photographer linked to his obit, and Ctein et al. posted reminiscences. Prompted to investigate, I finally knew who had created all those great, iconic images of the last 4 decades. Does it make sense to mourn the loss of someone unknown until he's gone? Dunno, but it seems I do.
I just got Jim Marshall's wonderful first book "Not Fade Away", and it makes me want more.
Requiescat in pace.