| 19 August 1951 | Bassist John Deacon is born in Oadby, Leicestershire | John Deacon | Births |
| 02 July 1971 | Queen perform at the College, Surrey, England, the first ever concert with John Deacon on bass | Queen, John Deacon | Concert |
| 18 July 1975 | John's first child, Robert, is born | John Deacon | Births |
| 03 February 1978 | John's second child, Michael, is born | John Deacon | Births |
| 25 June 1979 | John's third child, Laura, is born | John Deacon | Births |
| 13 December 1983 | John's fourth child, Joshua, is born | John Deacon | Births |
| 21 May 1986 | 'No Turning Back' by 'The Immortals' is released | John Deacon | Single Release |
| 06 June 1988 | Brian performs with many other artists, including John Deacon, at the Prince's Trust Rock Gala at the Royal Albert Hall, London, England | Brian May, John Deacon | Concert |
| 04 December 1988 | The Cross perform at a fan club party at the Hammersmith Palais, London, England, with Brian and John as special guests | The Cross, Brian May, John Deacon | Concert |
| 05 December 1992 | John's fifth child, Luke, is born | John Deacon | Births |
| 07 November 1993 | John's sixth child, Cameron, is born | John Deacon | Births |
| 01 July 1995 | John performs with the SAS Band at the Shepherd's Bush Empire, London, England | John Deacon | Concert |