Upon reading your findings, there may be a possility that the Chamberlin and Chamberlayne are tied togrther. I followed mine back to John De Tankerville, 1040, Tankville Castle, Normandy, France.
Our last name is spelled Shamblin, but took a turn back in time and had several spellings, one being yours.
If you would like to share of compare info. please e-mail me at, email@example.com
What I gather so far, most of mine came from England, settled in Shenandoah, Va, before going out.
Thank you for your time