We hope as many as possible with the surname from Wales will participate, preferably choosing the 25 or 37 marker tests.

Because there are other ethnic groups with the name Roderick, i.e. French Canadian from Rodrigue, German from Rothrock and other forms, Hispanic from Rodriguez, Portugese also from Rodrigue and perhaps others, we hope they will also participate, so that ultimately we will have enough data to determine the ethnic origin of a Roderick if it is not known.