Hi, I can't help you with documentation, but I found information on your Mary Abell and Reverend Samuel Luther in one of my books. Thought I'd just pass along the info.
"Mary ABELL b.11 April 1642, Weymouth, Mass. married Reverend Samuel LUTHER. He was born 1636 and was the son of John LUTHER and Elizabeth (last name unknown). He died 1716 and was buried Kickemult Cemetery, Warren, Rhode Island."
I have further information on ancestors of Mary ABELL if you are interested. This book is "HOFFMAN-MANNING-SIMMONS FAMILIES OF N.Y." by Joyce Williams Hoffman and C. William Hoffman.