We have these selections from the Dead’s history courtesy of Stu Nixon.
4/7/72
Wembley Empire Pool, London, England; Europe ’72 tour begins
4/8/67
KPIX Studios, San Francisco, CA; “The Maze” TV show
4/8/71
Boston Music Hall, Boston, MA; Ned Lagin plays whole show
4/9/70
Fillmore West, San Francisco; unknown vocalist sang on “Cowboy Song”