During the session for their third single From Me To You; saved up for Anthology I. A Beatles regular throughout their career. John and Paul sang it with The Quarrymen in '60. There's a tape recording by Mike McCartney to prove it, along with early versions of I'll Follow The Sun and Hello Little Girl (see there). Released on bootleg The Dawn Of Modern Rock (Pilz).
Terry Manning [who layed hands on that early Beatles demo and cut his own version prior to Let It Be; Manning hung around the local Ardent studio, focussed on British Invasion rather than on any local rock activity; released on Lucky 7 comp Rockin' Memphis Vol. 1]
Beatles [on Let It Be album, recorded on the roof of the Apple building in January]
Laibach [on their lp Let It Be]
Mark Lewisohn checked out all Merseyside train time tables for his definite Beatles biography The Beatles Tune In (2013) and swears no train ever stopped or departed from no Liverpool station at 9:09 in all these years.