As explained on my RICHARDSONs of Morebattle page, we are exploring a (very small) subset of the overall RICHARDSON Surname DNA project to tease out connections between the lines listed, and any others that come along, using both Y-DNA and autosomal DNA.
Our knowledge of the y-DNA of one of the lines has just increased by an upgrade from 37 to 67 markers, and the RICHARDSON results page
of the DNASurnames Lineages site, has been updated.
two tests are now at 67 markers however but at least the representative from the RICHARDSONs of Eckford, and that of William the Dancing
Master, are only minimally further apart.
At 37 markers they were at a genetic distance of 5 (GD5), which included 4 faster moving markers, so only distantly related.
At 67 markers that became GD6 by the addition of one more slow moving marker.
So still only rather distantly related - FamilyTree DNA's Time Predictor gives only a 71% probability of a common ancestory within 16 generations.
Jury still out, from lack of sufficient information on whether or not
the Dancing Master belongs to James and Margaret (MABON) RICHARDSON as we can't compare apples with apples, they could be a minimum of GD1, or at most, GD7 apart (one tested with the now defunct ancestry yDNA test, the other with FamilyTree DNA).