I have no idea if you ever resolved this query as it is now 8 years old! however I have just stumbled across your post and realised that we must be connected as I have a Gore marrying Grace Jones too. I think I have parents as follows:
Thomas Gore born 1744
His father William Gore born 1712 married Hannah Alderwick
William's father: Thomas Gore b 1673 married Hannah Gay
Thomas father: John Gore married a Jane? - not definite......
The above were all based in Wiltshire - I believe a prominent Gore family was in Wiltshire and that they came over from Germany/France in the 1200s
My grandmother was Mary Ellen Gore. Her parents were William Gore and Ellen Briggs.