Hi, if you are sure they were buried, there are a few: Holy Trinity(Fifield Cl,Nuneaton CV11 4TS),Attleborough Methodist (Park Av,Nuneaton CV11 4PQ) St Mary The Virgin C of E (The Vicarage,Coventry Rd,Nuneaton CV11 4NJ) these are the closest to the Attleborough area of Nuneaton.
We only have one crematorium on Heart of England Way,Nuneaton CV11 6WZ.
According to the 1901 Surname Index for Nuneaton they lived at Gorse Barn Cottage, am assuming it no longer exists as i cant seem to find anything about where that was exactly.
Hope this helps.
Carol