According to the 1873 Guide to the Church this memorial was originally sited in the North Transept, an area now largely occupied by the organ. It is believed that the memorial remains in situ behind the organ.
Memorial
(From the 1873 Guide)
IN MEMORY OF LIEUT. ROBERT KAY, OF THE 7TH ROYAL FUSILIERS, WHO DIED AT MANCHESTER ON THE 1ST APRIL 1851, IN THE 31ST YEAR OF HIS AGE. THIS TABLET IS ERECTED BY HIS BROTHER OFFICERS AS A TOKEN OF THEIR ESTEEM