Lineups
1969–1970
* David Byron – vocals
* Mick Box – guitar
* Ken Hensley – keyboards
* Paul Newton – bass guitar
* Alex Napier – drums
1970
* David Byron – vocals
* Mick Box – guitar
* Ken Hensley – keyboards
* Paul Newton – bass guitar
* Nigel Olsson – drums
1970
* David Byron – vocals
* Mick Box – guitar
* Ken Hensley – keyboards
* Paul Newton – bass guitar
* Keith Baker – drums
1970–1971
* David Byron – vocals
* Mick Box – guitar
* Ken Hensley – keyboards
* Paul Newton – bass guitar
* Iain Clarke – drums
1971–1972
* David Byron – vocals
* Mick Box – guitar
* Ken Hensley – keyboards
* Mark Clarke – bass guitar
* Lee Kerslake – drums
1972–1975
* David Byron – vocals
* Mick Box – guitar
* Ken Hensley – keyboards
* Gary Thain – bass guitar
* Lee Kerslake – drums
1975–1976
* David Byron – vocals
* Mick Box – guitar
* Ken Hensley – keyboards
* John Wetton – bass guitar
* Lee Kerslake – drums
1976–1979
* John Lawton – vocals
* Mick Box – guitar
* Ken Hensley – keyboards
* Trevor Bolder – bass guitar
* Lee Kerslake – drums
1979–1980
* John Sloman – vocals
* Mick Box – guitar
* Ken Hensley – keyboards
* Trevor Bolder – bass guitar
* Chris Slade – drums
