Yes, the Whit cultivars were also used, and were duly noted in the list of parent plants. If you take a look at any new cultivar of a plant, there should be a list of what plants were a part of the process. Daylilies are a good example. If you look at info from the AHS, each new cultivar registered lists its' lineage. I may be wrong, but Chocolate Mocha may have been the first Crape Myrtle of its type...dark burgundy/brown leaves. That is the operative word, FIRST.