Mother Maybelle Carter, Washington, DC, dated May 18, 1975 (no further info on cassette)
(probably Smithsonian Folklife Festival; date is possibly broadcast date)

Mother Maybelle Carter, vocals, autoharp, guitar
with Helen Carter and grandson (Helen's son) David Lawrence, Mike Seeger & Ralph Rinzler)

Lineage: FM Broadcast->2nd generation cassette (TDK-SA) received in trade (early 1980s)->Tape2PC/Sony Soundforge->CD Wave (for splitting into individual tracks)->Traders Little Helper (Flac level 8, align on sector boundaries)->torrented at Hungercity, Nov 13, 2008

Both cassette sides fit onto one CD (a little under 75 minutes)

carter0101 Wildwood Flower (CUT AT START, fade-in applied with Soundforge)
carter0102 TALK (Intro Of Musicians)->Sun's Gonna Shine In My Backdoor Some Day
carter0103 TALK (Cannonball Blues; Lesley Riddle - see http://en.wikipedia.org/wiki/Lesley_Riddle)
carter0104 Cannonball Blues
carter0105 TALK (Arthritis, Autoharp)
carter0106 Black Mountain Rag
carter0107 TALK (Autoharp)
carter0108 San Antonio Rose
carter0109 Liberty Dance
carter0110 TALK (Requests)
carter0111 I'm Thinking Tonight Of My Blue Eyes
carter0112 TALK (Beginnings Of The Carter Family, Jealous Hearted Me)
carter0113 Jealous Hearted Me->TALK (Maybelle's Grandson David Lawrence, Doc Watson, Lonesome Fiddle Blues)
carter0114 Lonesome Fiddle Blues (David Lawrence)
carter0115 TALK (First Recorded Song, Woody Guthrie, Bury Me Beneath The Willow)->Bury Me Beneath The Willow
carter0116 TALK (Carter Family As Influence On Woody Guthrie, When The World's On Fire & Little Darling, Pal Of Mine)
carter0117 Little Darling, Pal Of Mine->When The World's On Fire
carter0118 TALK (Amchored In Love Divine)
carter0119 Anchored In Love Divine
carter0120 TALK (TAPE FLIP)
carter0201 My Home's Across The Blue Ridge Mountain (CUT AT START, fade-in applied with Soundforge)
carter0202 TALK (XERA Border Radio Station, You Are My Flower
carter0203 You Are My Flower (Helen Carter, lead guitar)
carter0204 You Are My Flower (Reprise) (Mother Maybelle Carter, lead guitar)
carter0205 TALK (Maybelle's Picking Style, Earl Scruggs, Helen Carter)
carter0206 Dear Mama (Helen Carter & David Lawrence)
carter0207 TALK (Dear Mama, Johnny Cash Show)
carter0208 TALK (Early Performances, Touring)
carter0209 TALK (Banjo, Gold Watch And Chain)
carter0210 Gold Watch And Chain->TALK (Maybelle's Guitar)
carter0211 Will The Circle Be Unbroken->TALK (A.P. Carter)
carter0212 TALK (Worried Man Blues)
carter0213 Worried Man Blues (fade-out applied with Soundforge)

Transfer/Minor Editing (see above) by fredatwork/fredgermany, Nov. 12, 2008

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later added info.

'Mother' Maybelle Carter at the Smithsonian
Featured Performers:
"Mother" Maybelle Carter of the original Carter Family (guitar, autoharp, vocals)
Helen Carter Jones (guitar, vocal) (Maybelle's daughter)
David Jones (guitar, bass) (Helen's son, Maybelle's grandson)
Ralph Rinzler, director of the Smithsonian Folklife Festival (interviewer, mandolin)
Mike Seeger (guitar)
Recorded by John A. Long, produced by Steve Rathe for NPR's "Folk Festival USA," December 1975.

Helen's son's full name seems to be David Lawrence Jones
(according to her 1998 NY Times obituary -- http://elvispelvis.com/helencarter.htm).

AFS 18,089-18,090: National Public Radio Concert of Mother Maybelle Carter with Family and Friends
Two 10-inch tapes of country music performed by Maybelle Carter, Helen Carter Jones, and David Carter Jones accompanied by Mike Seeger and Ralph Rinzler. Recorded at the Smithsonian Institution's Baird Auditorium by National Public Radio's "Folk Festival USA" as part of the Smithsonian Institution's "Women in Country Music," May 18, 1975. (2 hours; LWO 8906)
http://www.loc.gov/folklife/Seegersymposium/seeger_AFC_collections.html