DURFEE variants + Vaughan, Robinson, Brackenbury, & Dello. Durfee variants include: DURFEY, DURFY, DURPHY, DURPHEY, DURFFEY, DERFY, DURFIE, and any other reasonable spelling variations are welcome to join the project. Though being driven primarily by the Y-chromosome (males only), at the DURFEE Project anyone with any DNA test can participate. To participate meaningfully, testers should share their genealogy as a pedigree (optionally with living persons) back to the earliest known ancestor in the line of interest.