Edana contacted me today about this family, but I have no way to reach her. If she reads this soon, please contact me personally via e-mail to firstname.lastname@example.org.
In the meantime, I believe that Amos probably descends from Ambrose Coffee, an Irish emigrant who fought with Daniel Boone at the Battle of Fort Boonesboro in KY. This Ambrose was not the Ambrose who married Mildred Moore, and is not a descendant of Edward and Anne Powell Coffey. This is not to say however, that he and Edward are not related. They could have a common ancestor in Ireland. We would likely know more if a male descendant, bearing the Coffee name was DNA tested, and results compared to known descendants of Edward.
A deposition (Madison Co. KY Deed Book I, pp 87-113, taken Nov. 22-24, 1809 in a land dispute trial), indicates that the Ambrose at Fort Boonesboro was born c1759 in Dublin, Ireland and came to the US as a young boy. He is undoubtedly the Ambrose on the Fayette county Kentucky census of 1790, and Montgomery county in 1800. He is also likely to be the Revolutionary soldier stationed at Fincastle (KY) in 1776 (See Burgess, Louis A., Virginia Soldiers of 1776, Vol. III, Baltimore, Gen. Pub. Co., 1973, p1251).
This Ambrose has several children, including a son named Ambrose, who also had a son named Ambrose. Many of these families can be found in Montgomery, Morgan and Greenup counties in Kentucky.
Copies of the deed book entry can probably be ordered from the Kentucky Archives, or from the Madison County clerk.
This is scant information, and I know of no one researching this Ambrose.