@rockm I missed this note first time around. I am glad to hear this! We had a "large" sassafras in our backyard in our rental property that I would estimate (based on the age of the house) was perhaps 20 years old. It had beautiful blooms in the spring, and there were millions of seedlings everywhere underneath it. I assume it was a transplant, because I have not yet seen another individual in this area (and the property in question was part of a newer residential development). I tried to obtain some larger saplings but they did not transplant easily - throwing a long tap root with few fine surface roots.
(BTW that link you posted seems intent on using the smallest photos imaginable - for a site that is supposed to be showing champion trees, they don't seem to want to share nice photos of them!)