This rocks, a complete playlist of all debut versions of Grateful Dead originals from 1965 to 1995. Listen here: https://archive.org/details/AllGratefulDeadOriginalSongDebuts66-95
I saw four, the primitive versions of Althea and Lost Sailor (no Saint), Hell In a Bucket and my favorite right out of the gate: Alabama Getaway. Since Donna Jean was inducted into the Alabama Music Hall of Fame last Saturday, I say it's time to relisten to the first Alabama Getaway.
August 4, 1979 Althea and Lost Sailor at the Okaland Auditorium Arena (later Kaiser)
November 4, 1979 Alabama Getaway at the Providence Civic Center
May 13, 1983, Hell In A Bucket at the Berkeley Greek
The links to archive are above or if you prefer to add the 161 files to your Itunes, here they are
Here's a nice unusual cover debut from November 6, 1970