Annette, I've found another burial at Braddan Cemetery which is probably your family.
Grave 1917
Peter Murphy 28 Feb 1888 aged 67 yrs.
Ann Murphy 6 Mar 1888 aged 69 yrs.
also in grave
John Murphy 14 Aug 1894 ( 2 days)
This is presumably their son Richard's child who
was baptised at St Mary's 11 Aug 1894 (in danger of death)
Marie Radcliffe