Nope - John Phillips wrote "Me & My Uncle"; Kristofferson wrote "Bobbie Magee".
My 10 (INPO, including Weir-sung Hunter/Garcia, and subject to change on the slightest whim):
Looks Like Rain
Music Never Stopped
Mexicali Blues
Other One
OMSN
Jack Straw
Lazy Lightning
Supplication
Brother Esau
Estimated Prohpet
Fave covers:
Desolation Row
MAMU
Big Iron
Mama Tried
Big River
My 10 (INPO, including Weir-sung Hunter/Garcia, and subject to change on the slightest whim):
Looks Like Rain
Music Never Stopped
Mexicali Blues
Other One
OMSN
Jack Straw
Lazy Lightning
Supplication
Brother Esau
Estimated Prohpet
Fave covers:
Desolation Row
MAMU
Big Iron
Mama Tried
Big River