Possible bp for David Purdon:

1) David Porden 1783 in Beverly (6 miles from Cottingham), father David (but this would mean he was 18 when child Mary is born, young but possible.
2) David Parden 1770 in Sigglesthorne (16 miles from Cottingham), father William (spelling and distance make this one unlikely)
3) David Purden 1753 in Beverly (6 miles from Cottingham) father David
4) David Purden 1750 in Bishop Burton (7 miles from Cottingham) father Jonathan

#3 and #4 seem most likely due to spelling, age, and distance


Note: children with father David Purdon

1798 George - Hull
1801 Mary - Cottingham - this is our Mary Pordon that marries John Gardham
1803 John - Cottingham
1805 Jane - Cottingham
1807 David Watson - Cottingham
1809 William - Cottingham
1815 Auslin - Cottingham