I am struggling to sort out David Duffin, his wife Mary, possibly née Deering, and their children. In part, this is because there was another David and Mary Duffin living in Hampshire in the same era that many people have taken to be them. The David and Mary I am interested in were from Wainfleet St Mary in Liconolnshire. I have David baptised at Wainfleet St Mary on 30 Apr 1786, parents William and Elizabeth. In 1823 David can be found in the Poll books at Wainfleet St Mary and his occupation is given as Yeoman. I have a possible death for Mary in first quarter 1852 registered at Grantham. I cannot find a birth for a Mary Deering but only picked up her maiden name from other trees. I cannot find a marriage for David and Mary. However, I have found the following children all baptised Wainfleet St Mary: Elizabeth bap. 7 Jan 1810 William bap. 16 Jun 1811 Jane bap. 1 Feb 1813 Robert bap. 6 Nov 1814 David bap. 20 Oct 1816 Stephen bap. 20 Jan 1823 Regarding David’s parents I have William Duffin bap. 19 Aug 1753 father John Duffin and mother Anne ? I have Elizabeth Duffin bap. 13 May 1753 father David Duffin and mother Mary Bannister married 22 Jul 1747. William and Elizabeth were married 13 May 1753. All at Wainfleet St Mary. If these details are correct I wonder what the relationship is between the two Duffin families. I’d appreciate assistance to confirm when David Duffin married Mary Deering and confirmation of her maiden name. Also confirmation of their deaths. Can anyone assist? Apart from Ancestry and Family Search I don’t know where else to search for Lincolnshire records, is there another reliable online resource?