I have family members whose names are Moore and Allen. Although I don't know if this will be of any use to you. I too am looking for the origins of my family.
My father Leslie Allen was born in Jamaica in a place called Johns Hall. there are other members of the same clan called Moore and another name which I have forgotten.
it was said that my family originated from a mixture of black slaves and white owners. my father was very white as was his mother and father. although I don't know her name or my fathers' fathers. I do know that they have a history of early death, all my fathers broothers and sisters are know deceased from a history of stomache related illnesses. My father died on 17 April 1976. and I know that his mother survived his father. I also know that the name, Allen, was nearly lost in Jamaica and the last surviving female had 2 sons and anmed one Moore and the other Allen.
I hope that this is of some use to you and you may be horrified at the thought of 'black' ancesters or another branch to your family, but the thought is lesss horrible for me, I just want to know where we came from and how my father happened to have green eyes.