I've just gone back and had another look. Set 1 has a review in which the reviewer has filled in the details of what comes from where.

Obviously, the producers have drawn on Tradition, Folkways and Topic. I've got most of it already, but I must say the Burns LP alone looks worth the asking price.

DISC ONE:
Songs of Robert Burns (1959):
1. Green Grow The Rashes, O
2. Landlady, Count The Lawin
3. I Maun Hae A Wife
4. O That I Had Never Been Married
5. Galloway Tam
6. I Hae A Wife O My Ain
7. There's Cauld Kail In Aberdeen
8. A Braw Wooer
9. Rantin Dog, The Daddio O't
10. Ay Waukin, O
11. Duncan Grey
12. Wha'll Mow Me Now
13. Rattlin' Roarin' Willie.
14. Hey Ca' Thro
15. To Daunton Me
16. Jumpin' John
17. What Can A Young Lassie Do Wi' An Auld Man
18. Dusty Miller
19. Tibbie Dunbar
20. Cooper O'Cuddy
21. She's Fair And Fause
22. Deil's Awa Wi Th' Exciseman
23. A Man's A Man For A'That
Classic Scots Ballads (with Peggy Seeger) (1959):
24. Johnny Lad
25. False Lover Won Back
26. Aikendrum
27. The Gairdener Chyld
28. Maid Gaed To The Hill
29. Elfin Knight
30. The Banks Of The Nile
DISC TWO:
Classic Scots Ballads (with Peggy Seeger) (1959) [cont.]:
1. Hughie Graeme
2. Mormond Braes
3. Glasgow Peggy
4. Monymusk Lads
5. The Trooper And The Maid
6. I Loved A Lass
7. Lord Thomas And Fair Annie
8. Home, Family, Neighbours, Streets And Oaths
Streets of Song (with Dominic Behan) (1959):
9. Singing Games And Ring Games
10. Skipping Rope, Bouncing Ball And Country Rhymes
11. Street Songs, Election Ditties, The Police, Prisons, Enemie
12. Songs Of Rhymes Of The Seasons
13. Street Poetry, Nonsense Rhymes, And Songs And Taunts
14. Night, Miscellaneous Street Songs, And The Day's End
DISC THREE:
Blow Boys, Blow (with A.L. Lloyd) (1960):
1. Row Bullies Row
2. Paddy Doyle.
3. Wild Goose Shany
4. While Cruising Round Yarmouth
5. Old Billy Riley
6. Handsome Cabin Boy
7. South Australia
8. Blow, Boys, Blow
9. Whup Jamboree
10. The Banks Of Newfoundland
11. Whiskey Johnny
12. Do Me Ama
13. Jack Tar
14. Paddy West
15. Haul On The Bowline
16. A Hundred Years Ago
New Briton Gazette Volume 1 (with Peggy Seeger) (1960):
17. Come Fill Up Your Glasses
18. Ballad Of The Carpenter
19. Ballad Of Springhill
20. Lifeboat Mona
21. The Trafford Road Ballad
22. Fireman's Not For Me
23. (When) I Was A Young Lad
DISC FOUR:
New Briton Gazette Volume 1 (with Peggy Seeger) (1960) [cont.):
1. The Crooked Cross
2. There's Better Things To Do
3. Brother, Won't You Join In The Line
4. The Space Girl's Song
5. Come All You Gallant Colliers
6. Come Me Little Son
7. Fitter's Song
8. Exile Song
New Briton Gazette Volume 2 (with Peggy Seeger) (1962):
9. The Banks They Are Rosy
10. Rosalie
11. March With Us Today
12. Lullabye For The Times
13. No Agents Need Apply
14. Printers Trade
15. The Ballad Of Jimmy Wilson
16. Big Hewer
17. Shoals Of Herring
18. Young Birds
19. Needle And Thread
20. Hey Ho! Cook And Rowe!
21. The First Time Ever I Saw Your Face
22. Come Live With Me
23. When I Was Young
24. The Hi' Cliffs of Spurn Point.