I'm sorry but I don't have the siblings for Rev. Green Adams. I have noticed other Green Adams listed on this forum. I'm a Newsom and Barnes descendant and both of these lines married into the Adam's families. Examples are listed below:
Hartwell Adams married Rebecca Barnes December 18, 1821 in Greensville Co. VA.Following Rebecca's death, Hartwell Adams married Fanny Underwood April 17, 1838 and I believe that Rev. Green Adams performed this marriage ceremony in Southampton Co. and recorded it also in Sussex County. Richard Barnes married Elizabeth Adams November 20, 1820 Sussex County.
If I'm able to find further information for Martha Newsom and Rev. Green Adams, or the other couples above, I will share the source documents with you.