Genealogy Chat

I have been given some information that I believe may be my ancestor, but how can I go about confirming that this is the right persons.

Peter Walker and his wife Anne and son peter are all buried in the same grave in St Bartholomew;s Church Yard in Westhoughton, Lancashire (Fact have seen the grave) All I have his death dates from the grave stone and nothing else.
the info I have been given is the following Peter Walker Intended marriage 23/06/1749 Residence Westhoughton Spouse: Ann Roscow Residence: Westhoughton Status: Spinster
There is a possibility that this may be the same people as in the grave.

Anyone have any suggestions how I can confirm this

Many thanks

Groom's Name: Peter Walker
Groom's Birth Date:
Groom's Birthplace:
Groom's Age:
Bride's Name: Ann Roscoe
Bride's Birth Date:
Bride's Birthplace:
Bride's Age:
Marriage Date: 27 Nov 1750
Marriage Place: St. Peter Parish, Bolton-Le-Moors, Lancashire, England
Groom's Father's Name:
Groom's Mother's Name:
Bride's Father's Name:
Bride's Mother's Name:
Groom's Race:
Groom's Marital Status:
Groom's Previous Wife's Name:
Bride's Race:
Bride's Marital Status:
Bride's Previous Husband's Name:
Indexing Project (Batch) Number: M01054-7
System Origin: England-EASy
Source Film Number: 1966742
Reference Number:

Thank you for the information