Hi Mike,
That is a Submitted Record of a Marriage so 1813 may not be correct at all. It is a guess by the Submitter given the Childrens Christenings they have found.
Although at this stage I am unable to find the Marriage Mary may be nee HAYES/HAY/HAYS
DAVID HAY Gould, 15 Feb 1832, Tenby, Pembroke, Wales
And in Cornwall;
MARIANNE HAYES Gould, 08 July 1819, Padstow, Parents JAMES/MARIANNE, Father Shipbuilder
Hopefully someone esle can come up with more for you
