As Angela says, most St Philip's burials after June 1857 took place at Wardsend. It was the official burial ground for the parish so the registers transcribed by FamilySearch (and FMP) come under the parish name. Many of the funeral services will have been held in the cemetery chapel rather than the parish church. The FindAGrave info is mostly taken from one of our databases which we tend to refer to as for 'Wardsend' rather than 'St Philip's'
There is a gravestone on this grave. This is the inscription, slightly summarised and standardised:
H432
ALBERT EDWARD BYFORD son of ALBERT EDWARD and MARY ANN HARROP died 13th December 1878 aged 4 years 6 months
Also JOHN ERNEST their son died 13th February 1879 aged 6 years 4 months
Also ALBERT EDWARD HARROP father of the above died 19th October 1932 aged 87
Also MARY ANN HARROP wife of the above died 10th October 1940 aged 92
I have a photo taken in 2010. Not a very good image because of the traces of ivy roots. I will try and get a more up-to-date image when I am next in the cemetery. Meanwhile I will send you a copy of the 2010 photo.
Thanks Hugh for the info, In the new year, weather permitting, I shall try to get to Abbey Lane to look. However as Angela mentioned they were placed in section H but as Abbey Lane has a section H in both general ground and consecrated ground I presume they would have been placed in the consecrated section but could someone confirm pleas.
The St Philip's remains are buried in section B (consecrated) at Abbey Lane, against the boundary wall on the Abbey Lane side. I have seen elsewhere the suggestion that they are in sction H but that is incorrect.
I cannot at the moment find the plot numbers (I'm sure I have them somewhere!) but they are in the range B1126 to B1135, just about as far as you can get along the wall from the gate. I have a plot plan of the section from Sheffield Archives and a google satellite image I have labelled with the approximate location, if you would like them.