I would be most interested in finding out what letters and other info you have on the Yount/Jundt family, as much of the early research on this family is not that readily available. By some strange coincidence, I do have a copy of the July 8, 1939 letter you referred to from William M. Yount to Charles Yount of Bedford, PA which I obtained from the descendants of Charles Yount. The Bedford Yonts are my ancestors so I do have lots of info on that line which I am willing to share if you are interested. The William M. Yount who wrote the July 8, 1939 letter was one of two Younts who did a lot of research on the Yount families in the 1930s. William M. Yount wrote an Addendum to a paper by William C. Yount entitled, "A Brief Sketch of the Origin of the Yount Family in America" which I can e-mail you a copy of if you are interested. William M. Yount's research formed the basis for the book, " The Yount (Jundt) Family of Europe and America" by Edith Warren Huggins. That book can be obtained from the Catawba County Historical Association in NC.
I have done considerable research on many of the various Yount families in America so if you are related to a Yount, I may have some info on your ancestors.