Northern Whig 8th October 1925 has the following Death announcement:
POTTER-October 5th, 1925, at the Royal Victoria Hospital (result of an accident), Sarah, wife of the late Hugh Potter . Her remains will be removed from her residence , 108 , Woodstock Road , to-day (Thursday) , at 3pm , for interment in Dundonald Churchyard .
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We can assume this is Hugh Potters Mother .
Belfast Cemetary Records hold no such record for Sarah being interred in Dundonald "Cemetary".
If Dundonald "Churchyard" is a seperate place to the Cemetary then i'd favour the chances of her son being in the same grave as her. If not then there is records missing ?