Only thing I can think to add (brilliant damn list!) is Willie Nelson. and maybe Jeff Tweedy.
1950-2000: The Top 25 Singer/Songwriters
1.Bob Dylan: I don’t expect any arguments here
2.Curtis Mayfield: Perhaps he should be #1
3. Paul Weller: Hideously underrated in the US, this whiteboy knows soul
4. Tom Waits: He makes two kinds of records: good ones & great ones
5. Van Morrison: If he ever put out a bad record, I haven’t heard it yet
6. Hank Williams: Some of his songs can even make Christianity sound cool
7. Marc Bolan: The pop genius of the 70’s
8. Toots Hibbert: The man who should have been Jamaica’s International Superstar
9. George Jones: A jug of wine, a George Jones album, another jug of wine, and then another…
10. Lou Reed: I’d put him on this list just for “Pale Blue Eyes”
11. Carole King: More for her songwriting than her singing
12. Elvis Costello: Not half as good as everybody says he is, but what a half!
13. Townes van Zandt: Have you heard him? Good, then you know what I’m talking about
14. Eldon “El Duce” Hoke: Hey, this is MY list. I can put anybody I want on
15. Beck: He’s the new Dylan. Honest
16. James Osterberg: It is frightening: The man has supernatural powers!
17. Leonard Cohen: Of course I’m going to include him
18. Bruce Springsteen: “Nebraska” is enough to earn him a place
19. Nick Drake: Volkswagen, The Estate of Nick Drake wishes to thank you
20. Neil Diamond: What if Elvis was a Jew who wrote his own songs, and never did half-assed karate kicks onstage?
21. Lucinda Williams: Great singer/songwriters cover HER songs!
22. Kurt Cobain: An ear for a great tune, and an eye for a pretty lady! Oh muse, sing!
23. Richard Thompson: Continues to delight
24. David Bowie: Demoted from #11 to #24 for failing to die immediately after "Scary Monsters"
25. Gram Parsons: Dude, love that Nudie suit!
2.Curtis Mayfield: Perhaps he should be #1
3. Paul Weller: Hideously underrated in the US, this whiteboy knows soul
4. Tom Waits: He makes two kinds of records: good ones & great ones
5. Van Morrison: If he ever put out a bad record, I haven’t heard it yet
6. Hank Williams: Some of his songs can even make Christianity sound cool
7. Marc Bolan: The pop genius of the 70’s
8. Toots Hibbert: The man who should have been Jamaica’s International Superstar
9. George Jones: A jug of wine, a George Jones album, another jug of wine, and then another…
10. Lou Reed: I’d put him on this list just for “Pale Blue Eyes”
11. Carole King: More for her songwriting than her singing
12. Elvis Costello: Not half as good as everybody says he is, but what a half!
13. Townes van Zandt: Have you heard him? Good, then you know what I’m talking about
14. Eldon “El Duce” Hoke: Hey, this is MY list. I can put anybody I want on
15. Beck: He’s the new Dylan. Honest
16. James Osterberg: It is frightening: The man has supernatural powers!
17. Leonard Cohen: Of course I’m going to include him
18. Bruce Springsteen: “Nebraska” is enough to earn him a place
19. Nick Drake: Volkswagen, The Estate of Nick Drake wishes to thank you
20. Neil Diamond: What if Elvis was a Jew who wrote his own songs, and never did half-assed karate kicks onstage?
21. Lucinda Williams: Great singer/songwriters cover HER songs!
22. Kurt Cobain: An ear for a great tune, and an eye for a pretty lady! Oh muse, sing!
23. Richard Thompson: Continues to delight
24. David Bowie: Demoted from #11 to #24 for failing to die immediately after "Scary Monsters"
25. Gram Parsons: Dude, love that Nudie suit!