According to N, & Q. (2nd S. vol V. p. 47) they record that:
“On Wednesday (the 25th) night last the towns of Chatham, Rochester, and Brompton exhibited considerable excitement in consequence of a torchlight procession appearing in the streets, headed by a band of fifes and drums.”
This was to celebrate the association of Chatham with the making of ropes and its founder Queen Catherine and as it notes:
“Notwithstanding the late hour (eleven o’clock) & large number of persons of both sexes, accompanied the party. The demonstration was got up by the rope-makers of the dockyard, to celebrate the anniversary of the founder of the ropery (Queen Catherine). The female representing her Majesty (who was borne in a chair of state by six ropemakers) was dressed in white muslin, wore a gilt crown, and carried in her hand a Roman banner.”
It is evident that there was so confusion her between Queen and Saint and surely it was the saint who was being commemorated. When the custom disappeared is unclear and it is perhaps surprising that the Chatham Historic dockyard have not thought to revive this custom.