I noticed a number of queries on this message board that indicates that some may not be aware of the Guild of One Name Studies and that CUF(F)LEY is one of the surnames being researched.
There is also a Y-DNA project that is on Family Tree DNA for this family.
The family trees that are being researched throughout the world are being linked whenever possible. Some of the records go back to medieval times and include THOMAS COFFELYE of Enefeld (modern Enfield) Middlesex in 1379 Feet of Fines records.
If I can be of help please do not hesitate to get in touch.
Best Wishes for your research
David