The Sanctus bell is devoid of inscription.

1843	Six bells cast by Thomas Mears II. The back four bells were invoiced out on 12th Oct, 1843, the front two on 13th Jan. 1844.
1887	In his book "Church Bells of Kent", Stahlschmidt recorded 6 bells: 1 and 2 by C & G Mears dated 1844 with the remainder by Thomas Mears 1839. This is surely an error!
1899 - 1901	Tower rebuilt by Fellows Prynne. Originally there were two towers at the west end of the church, although one of them was later demolished to extend the church.
1901	Back 2 bells recast by John Warner who rehung the whole ring in a new frame.
1950	Bells retuned and rehung by Mears & Stainbank.
early 1970s	An appeal was launched to rehang the bells and augment them to 8. This plan was never fully realised.
1974	Bells rehung with new fittings in the existing frame by John Taylor & Co. Queen Mary's Hospital chapel in Sidcup closed. Peter Dale, Tower Captain of the time writes: "The late Revd Stanley Allen was vicar at the time and he went to the site to negotiate the bell's rescue. The contractor refused to let him have it as he'd allowed for the scrap value in his budget. In the event he kept it for himself and installed it in the turret over his stables, but no sooner had he done so than the building was struck by lightening. That rather gave him the jitters so he pleaded with Stanley to take the bell away." The bell was hung in a new timber frame constructed and donated by local ringer and builder, Bill Belsham.

The Sanctus bell hanging as it did in Queen Mary hospital chapel before transfer to the church.

St John's Church from the Green, c.1890s.  The first church was established here in 1844 as a district church for St Nicholas Chislehurst, in which parish large parts of the developing Sidcup lay.  This church included distinctive twin towers, a scheme not unusual among church designs of this period.  As Sidcup grew, so the church was enlarged in 1882 with a chancel and a little later, by an addition to the nave which can be seen here.