There are several references in this thread to Samantha Baumgartner, Pete Seeger's aunt. I'm bringing this back to the top because of a search for her that is being redirected from the Facebook page.

The party on FB spelled her name Bumgarner (Samantha Biddix Bumgarner), but here at Mudcat Baumgartner gets far more hits. That said, here are at least two more places where she appears:

Stringsinger's post on 28 Oct 12 on Odetta's Guitar Style thread

Bumgarner spelling

This is on the ADD: Shout Lulu 20 Nov 02 - 09:55 PM post.