The band were formed around May 1965 and consisted of Peter Gabriel (vocals), Tony Banks (keyboards) and Chris Stewart (drums).
In May 1965, when future Genesis guitarist Anthony Phillips had joined the school, a five-piece band called Anon had come into existence.
In December 1965, Garden Wall played their only concert, on a stage inside Charterhouse School on a double bill with Anon.
Gabriel showered the audience with rose petals that he had spent the afternoon picking, this was to be the first of his famous onstage antics.
This left Phillips and Mike Rutherford, the band's two guitarists, who then joined all three of the members of the Garden Wall in 1967 to form Genesis.