I'm just starting to research the GULLICK family tree, your records currently predate what I have so far. From the family records I have at the moment, the earliest ancestor I have so far is Jonah Gullick (b. 30/08/1821) in Farmborough(?), Somerset. He married Anne Gill (b. 04/05/1826)from Chewton Mendip, Somerset in March 1849.
I would welcome any additional information you could supply.