I was in St Luke's yesterday and got Mike to check for your burials and had a look at the graves. Both are accesible and have good stones:
Nicholas and Frances are in section 12 number 120422 and Esther (Ettie) and William are in section 9 number 90234.
Nicholas's grave also lists John his son died Jan 29th 1873 aged 6 weeks, Herbert son died Aug 21st 1884 aged 6 months Agnes daughter died Feb 11th 1888 aged 1 yr 4 months.
Plus Dennis Wailing died Nov 3rd 1951 Aged 71 yrs relationship not specified.
I have copies of the memorial inscriptions and churchyard plan etc but if you are in Widnes do call in on a Wednesday as our verger Mike or myself will be happy yto show you the graves. Regards Lesley