This would appear to be their marriage
11 August, 1845 at St Mary Newington, Surrey
Frederick KNIGHT, bachelor, leather draper of Page's Walk - father George KNIGHT, pictureframe maker.
Caroline FALLON, spinster, of King St - father: James FALLON, warehouseman
1851 census gives her place of birth as St Olave, Southark. Not that this helps find her death.
Judith