We continue to see refinement of the family tree for Group F Morrisons through results from Big Y tests and follow-up individual SNP testing. Customized testing of individual SNPs by YSEQ has been a major help in our research. YSEQ will design tests upon request and will package groups of tests into discounted packages.
Results of the SNP testing to-date are posted at http://www.geneticousins.com/L1403/L1403SNPTree.htm
. We currently have three major branches identified under L1402: Morrison, Moore, and other Seven Septs of Laois surnames. It appears that the Morrisons split off from L1402 at about the same time as the Moores and the other Seven Septs surnames. This may have been due to Viking settlement on the Isle of Man and in Galloway by Vikings based in Dublin. L1402 cousins who remained in Ireland include the Moores and the other Seven Septs surnames.
We have looked for a single SNP to connect the IOM Morrisons and the Scottish Morrisons, but have not found one yet. However, results on STR DYS713 show a value shared (so far) only by these two Morrison lines and not by the other L1402s. Additional DYS713 tests are needed to confirm this, since this is a marker not normally tested or reported by FTDNA.
We are also testing several other L1402 surnames to see whether they connect with the Morrisons earlier in the tree or more recently. Tests are currently pending for McMorris and McAdams.