Here's information from the Rounder CD:

The Alan Lomax Collection gathers together the American, European, and Caribbean field recordings, world music compilations, and ballad operas of writer, folklorist, and ethnomusicologist Alan Lomax. The Concert and Radio Series is devoted to live concerts and radio programs produced by Alan Lomax at Town Hall and Carnegie Hall, and on CBS and the BBC. Produced in 1944 for the British Broadcasting Company, The Martins and the Coys is a fascinating curio in the Alan Lomax canon. This ballad opera finds the legendary mountain families setting aside their differences to defeat Hitler during World War II. A once-in-a-lifetime cast features Will Geer, Woody Guthrie, Burl Ives, Lily May Ledford, Pete Seeger, Fiddlin' Arthur Smith, and Hally Wood.

Track Listing

1. The Martins And The Coys - Pete Seeger/Chorus
2. Introduction - Burl Ives
3. Cumberland Mountian Bear Chase - Burl Ives/Will Geer/Pete Seeger
4. The Martins Meet The Coys - Burl Ives/Helen Claire/Katherine Raht/Will Geer/Jimmy Dobson/Geoffrey Bryant
5. Run, Boys, Run - Pete Seeger/Chorus
6. Back To The Cabin - Jimmy Dobson/Geoffrey Bryant/Will Geer
7. Black Is The Color Of My True Love's Hair - Burl Ives
8. Alec Coy At The Induction Center - 'Chairman'/'Sergeant'/Woody Guthrie
9. You Better Get Ready - Woody Guthrie/Chorus
10. At The Deer Forks Railway Depot - Burl Ives/'Stationmaster'/Katherine Raht/Woody Guthrie/Will Geer/Jimmy Dobson/Geoffrey Bryant
11. Nine Hundred Miles - Woody Guthrie
12. The Train Departs - Burl Ives
13. On Top Of Old Smoky - Hally Wood
14. An Agricultural Agent Visits The Coys - Katherine Raht/Helen Claire/Carson Robison
15. Deliver The Goods - Lily May Ledford/Rosalie/Bella Allen/Chorus
16. Alec And Ben In The Army Camp - Burl Ives/Woody Guthrie/Geoffrey Bryant/'Sergeant'
17. When We All Go Marching In - Pete Seeger/Chorus
18. The Deer Forks Victory Garden - Burl Ives/Will Geer/'Lum'/Margaret Johnson/Helen Claire/Katherine Raht
19. Red Rocking Chair - Alan Lomax/Hally Wood
20. Uncle Boone Visits The Coys - Will Geer/Katherine Raht/Helen Claire
21. How Many Biscuits Can You Eat? - Lily May Ledford/Rosalie/Bella Allen/Will Geer
22. Ben And Alec Call Off The Feud - Geoffrey Bryant/Woody Guthrie
23. All Of You Fascists Bound To Lose - Woody Guthrie/Chorus
24. Ben And Sary Meet Again - Geoffrey Bryant/Helen Claire
25. The Turtledove - Burl Ives/Hally Wood
26. Ben Proposes To Sary - Geoffrey Bryant/Helen Claire
27. Smoky Mountain Gals - Lily May Ledford/Rosalie/Bella Allen/Chorus
28. Dance All Night With A Bottle In Your Hand - Fiddlin' Arthur Smith/Woody Guthrie
29. 'Round And 'Round Hitler's Grave - Burl Ives/Woody Guthrie/Pete Seeger/Chorus
30. Closing - Burl Ives
31. The New Martins And The Coys - Pete Seeger/Woody Guthrie/Sonny Terry/Chorus
32. The Martins And The Coys - Ted Weems And His Orchestra
33. The New Martins And The Coys - The Union Boys (The Almanac Singers)
34. East Virginia Blues - Lily May Ledford
35. Sugar Babe - Lily May Ledford/Pete Seeger
36. Gypsy Davy - Lily May Ledford
37. The Girls In This Neighborhood - Lily May Ledford

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Here's information about another Seeger version of "Martins and the Coys," from the Smithsonian/Folkways album titled That's Why We're Marching: World War II and the American Folksong Movement
14. THE MARTINS AND THE COYS Union Boys:
Pete Seeger, vocal/banjo; Burl Ives, vocallguitar; Alan Lomax, vocal; Tom Glazer, vocal; Sonny Terry, harmonica; possibly others. Previously unreleased track (Words by the Almanac Singers, music adaptation of”Hatfields and McCoys”; recorded March 1944, matrix 616, Smithsonian Acetate #754, 12” acetate)

The Almanac Singers assigned a few of their songs to the songwriter and song publisher, Bob Miller; he published them under the title Songs of the Almanac Singers (New York: Bob Miller, Inc., 1942). One of the songs was “The New Hatfields and the Coys,” in which the feuding families gave up their feud to join hands in fighting Hitler; Cousin Abner even agreed to stay “sober until the shooting’s over.” The theme came from the legendary Kentucky fami1y feuds: the Martin-Tolliver feud and the Hatfield-McCoy feud.

Elizabeth and Alan Lomax took this theme and wrote a musical radio play; she wrote the dialogue and he arranged the music, and the song was rewritten as “The Martins and the Coys,’ which also became the title of the radio “contemporary folk tale.” No network in the United States would carry the show, so Alan Lomax arranged to record it in the Decca studio for broadcast by the British Broadcasting Corporation (BBC).

The cast was a mixture of excellent actors along with folk and country musicians. Burl Ives and Woody Guthrie were both singers and actors; Will Geer, Helen Claire, and other actors helped carry the narrative; the musicians also included Pete Seeger (on furlough from the U.S. Army), Cisco Houston, Sonny Terry, Tom Glazer, Carson J. Robison, Arthur Smith, Lily May Pearson and the Coon Creek Girls, Rosalie Allen, and others.

Five of the songs used in the production are in this collection, for Lomax assembled the songs he considered to be appropriate anti-Hitler songs. Woody Guthrie either wrote them or played a major role in their composition. However, the versions in this collection are not the original BBC recordings. The musicians, as listed in the credits, recorded the songs for Moses Asch as singles, not as the radio play “The Martins and the Coys.”