I found this track listing with more info. Note track 3 is not a repeat of Military Madness, but rather Immigration Man.
And note the demo of Marrakesh Express is listed as London 1968. Could this be a Hollies version? Or just a Nash acoustic version?
If the latter, maybe Cameron can do another mash up, adding this vocal version to the Hollies instrumental version he found a few years ago. Maybe they're in the same key?
Disc One
1. “Marrakesh Express” – Crosby, Stills & Nash
2. “Military Madness” – Graham Nash
3. “Immigration Man” – Crosby/Nash
4. “Just A Song Before I Go” – Crosby, Stills & Nash
5. “I Used To Be King” – Graham Nash *
6. “Better Days” – Graham Nash *
7. “Simple Man” – Graham Nash
8. “Teach Your Children” – Crosby, Stills, Nash & Young
9. “Lady Of The Island” – Crosby, Stills & Nash
10. “Wind On The Water” – Crosby & Nash
11. “Our House” – Crosby, Stills, Nash & Young
12. “Cathedral” – Crosby, Stills & Nash
13. “Wasted On The Way” – Crosby, Stills & Nash
14. “Chicago/We Can Change The World” – Graham Nash
15. “Myself At Last” – Graham Nash
•Previously unreleased mixes
Disc Two: The Demos
1. “Marrakesh Express” – London, 1968
2. “Horses Through A Rainstorm” – London, 1968
3. “Teach Your Children” – Hollywood, 1969
4. “Pre-Road Downs” – Hollywood, 1969
5. “Our House” – San Francisco, 1969
6. “Right Between The Eyes” – San Francisco, 1969 *
7. “Sleep Song” – San Francisco, 1969 *
8. “Chicago” – Hollywood, 1970 *
9. “Man In The Mirror” – Hollywood, 1970
10. “Simple Man” – Hollywood, 1970
11. “I Miss You” – San Francisco, 1972
12. “You’ll Never Be The Same” – San Francisco, 1972
13. “Wind On The Water” – San Francisco, 1975
14. “Just A Song Before I Go” – San Francisco, 1976
15. “Wasted On The Way” – Oahu, 1980
www.levykauppax.fi/artist/nash_graham/over_the_years/