I see two Pete Seeger Gazette albums at Smithsonian Folkways:

Vol. 1 (1958)
-Folkways: https://folkways.si.edu/pete-seeger/gazette-vol-1/american-folk/music/album/smithsonian
-YouTube: https://www.youtube.com/watch?v=1OPXGLJKvpw&list=OLAK5uy_mqj2oVO3wVozPz-nbrJry0mNGT71BLZDk
1. Pretty Boy Floyd
2. Banks of Marble
3. The TVA Song
4. Martian Love Song
5. 42 Kids
6. State of Arkansas (My Name is Terry Roberts)
7. Declaration of Independence
8. The Wild West Is Where I Want To Be
9. The Ballad of Sherman Wu
10. Roll On Columbia
11. The Sinking of the Reuben James
12. Then We'll Have Peace
13. The Scaler
14. Newspapermen
15. Talking Atom (Old Man Atom)
16. Teacher's Blues
17. The Demi Song
18. The Battle of Maxton Field
19. Doctor Freud
20. There is Mean Things Happening in This Land

Vol. 2 (1961)
-Folkways: https://folkways.si.edu/pete-seeger/gazette-vol-2/american-folk/music/album/smithsonian
-YouTube: https://www.youtube.com/watch?v=v2LgcW1hrz4&list=OLAK5uy_m1q9vf89n0DHkHeyvdm70n4LsK0qEnHok
1. Tomorrow is a Highway
2. The Dying Miner
3. Bourgeois Blues
4. The Literacy Test Song
5. Fayette County
6. Moorsoldaten (Peat Bog Soldiers)
7. Hold the Line
8. When a Fellow Is Out of a Job
9. The RAND Hymn
10. The Crow on the Cradle
11. I Come and Stand at Every Door
12. The Easter Marchers
13. The Jack Ash Society

Ewan MacColl and Peggy Seeger did two New Briton Gazette albums:

• Vol. 1, Contemporary British Songs (1960)
  https://folkways.si.edu/ewan-maccoll-and-peggy-seeger/new-briton-gazette-vol-1/celtic-historical-song-struggle-protest-world/music/album/smithsonian
  
• Vol 2.
  https://folkways.si.edu/ewan-maccoll-and-peggy-seeger/new-briton-gazette-vol-2/celtic-historical-song-struggle-protest-world/music/album/smithsonian

And here's the Folkways Pete Seeger channel at YouTube - you won't believe how much is there:
https://www.youtube.com/channel/UC6J7zes7i6Fr2GmwkadEq-w