I do have some data I received "off board". I am presently in process of checking portions of your offering from the url you listed and may eventually have a few updates for you.
I am glad to know you are still working on this lineage.
We'd like still more volunteers for DNA testing, and there are plenty of branches (in this and other lineages) that are not yet represented by a single living Abernathy. The testing we're doing does require a direct unbroken male line and sadly, some branches tend to 'daughter out', so to speak.