↑ Blake 2008, tr. 37–38: Mason meeting Waters while studying architecture at the London Polytechnic; Fitch 2005, tr. 335: Waters meeting Mason while studying architecture at the London Polytechnic.
↑ Blake 2008, tr. 39–40: Wright was also an architecture student when he joined Sigma 6; Povey 2008, tr. 13–14: The formation of Sigma 6; Schaffner 1991, tr. 27: Instrumental line-up of Sigma 6: Waters (lead guitar), Wright (rhythm guitar) and Mason (drums).
