I have some of the same information as you and would love to hear back from you:
I have a David ILSLEY, Christened 11 Jan 1784 in Sherborne St John.His parents were Job ILSLEY (born Circa 1745 in Sherborne St John) and Elizabeth STROUD (have not yet confirmed her Maiden Name but believe this is right), she was born Circa 1749 also in Sherborne St John.
[Job's parents were List of their children as I have it so far:
Edward 1771; James 1772; "Phill" 1774: George 1776; Job 1778 and David [As above] 1783/4.
David married Sarah BEAGLEY (David was by this time living in Kings Worthy, Hampshire).Their marriage Licence was as follows:David ILSLEY of Kingsworthy (Labourer), Batchelor of 24; and Sarah BEAGLEYof Farringdon, 17, Spinster, with consent of her father, Thomas BEAGLEY, at Farringdon, 3 October 1807.