72 Hour Concert | Record Plant Sausalito Archive

Session

Type: Live Broadcast
Date Recorded: June 30, 1973
Date Broadcast: June 30, 1973

Archive note

KSAN 95 FM broadcast. Tom Donahue series. Multi-artist 72-hour radio concert. CENSUS 2026-05-31: DATE CONFLICT, flagged for Tom + Marty. The '72-hour marathon' is historically attested as the event that kicked off the KSAN Record Plant live broadcasts (Richie Unterberger, 'The Record Plant in Sausalito'; KQED 'Running the Record Plant,' 2016). Raechel Donahue recounts the Kristofferson set during it. Located evidence places the marathon in April 1973, not June 30. April 22, 1973 was Easter Sunday, and the table already clusters four sets there or adjacent: Kris Kristofferson & Friends 4/22/73 (with Rita Coolidge, Doug Sahm, Nick Gravenites, David Blue, Donnie Fritts, Stephen Bruton, Terry Paul), Mike Bloomfield & Mark Naftalin 4/22/73, Nick Gravenites & Blue Gravy 4/22/73, and Montrose 4/21/73 (billed by Donahue as Montrose's first live performance). That Friday-to-Easter-Sunday weekend reads as the marathon's component sets. The 1973-06-30 date on this row is unsupported by any located source (June 30, 1973 was a Saturday). This row is an umbrella event, not a single recording: the marathon's surviving audio is the individual artist sets, e.g. Kristofferson & Friends, issued on CD. Recommend Tom + Marty confirm the marathon date against the notebook, then either re-date this row to the April 1973 weekend and use it as the parent event linking the 4/21 to 4/22 sets, or retire it. No single recording assigned. Not deleted, pending adjudication. ADJUDICATION 2026-05-31 (Tom): Defer to Raechel's schedule notebook date. The 1973-06-30 date stands as authoritative for the 72 Hour Concert. Date conflict resolved. The April 1973 collector-recording cluster above is retained as context only and does not override the notebook. Open question for Marty: whether the 4/21-4/22/73 sets are component broadcasts of this same 72-hour event or a separate cluster. Verification set to From Primary Source (notebook-attested umbrella event, no single located recording). Census Status set to Done. CENSUS 2026-06-02: ARTIST ROSTER CONFIRMED FROM PRIMARY SOURCE. Raechel Donahue's personal schedule notebook provides the complete three-day lineup for the event (June 29–July 1, 1973): FRI June 29: Rowan Brothers / Hoodoo Rhythm Devils / Banana & [the Bunch] / [additional acts partially illegible in original] SAT June 30: Ducks / Earthquake / Ruben & Jets / Old & In The Way / Ronnie Montrose / Jesse [Colin Young] / Joy of Cooking / Sha Na Na (through 4:30 AM) SUN July 1: Chambers Brothers / Copperhead / Pointer Sisters / Malo / [Nick Gravenites &] Blue Gravy / Bloomfield/Naftalin / Elvin Bishop / Doug Sahm / Kris Kristofferson / Rita Coolidge / David Blue / Eric Anderson Notes on overlapping artists: Bloomfield/Naftalin, Blue Gravy, Kristofferson+friends, Elvin Bishop, and Doug Sahm all have separate verified KSAN rows at other 1973 dates; those are treated as distinct appearances from this event. Old & In The Way (rows: March 2, April 21) and Ronnie Montrose (row: April 21, 'first performance') also appear in this schedule — separate June 30 stubs added for both. Copperhead date resolved to 1973-07-01 per this schedule. Stub rows added 2026-06-02 for: Chambers Brothers, Pointer Sisters, Malo, Joy of Cooking, Sha Na Na, Rowan Brothers, Hoodoo Rhythm Devils, Jesse Colin Young, Earthquake, Ruben & the Jets, Eric Anderson, Old & In The Way (Jun 30), Ronnie Montrose (Jun 30). Census Date 2026-06-02.

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