Thanks Kevin.
A very helpful former contributor has confirmed that :
x - Grand Teton is RF bred by virtue of Wendymae and
x - Scuola Hanover is RF bred by virtue of Wendymae
And defined RF as, "The Rasmussen Factor is such inbreeding to a superior broodmare which is realised through different individuals in the first five generations in the pedigree with the participation of both sides (sire, dam) of the pedigree."
Let us know if you disagree.
Thanks,