Rthrift
From ISOGG Wiki
The Thrift /Frith /Firth Surname DNA Project:
Thrift /Frith /Firth DNA Project ISOGG entry
Project site map: http://freepages.genealogy.rootsweb.ancestry.com/~thriftzzfrithzzfirth/
Project background: http://www.familytreedna.com/public/Thrift-Frith-Firth/default.aspx
One-name study profile page: http://www.one-name.org/profiles/thrift.html
Subgroup within Ancestry.com: http://groups.ancestry.com/group/62479543