,
* Show times are best guesses, especially for older shows
There is a poster that confirms that this date is correct:
http://http://www.duaneallman.info/images/posterabb04171971.jpg
he played I was there
I believe Duane didn’t play this date because he was recording with Eric Clapton (Layla).
Where are all the April 1971 ABB shows? Seems this is the only month in ’71 that no shows are available on disc.