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.