Hi, Lynn -- I now work as a volunteer at the SLC Family History Library. Yesterday a fine gentleman from Columbus, Mississippi, was visiting here and told me that he knew an Uithoven girl in Columbus, "really sharp, really smart girl." So, I felt encouraged to try again at a family research blog, possibly under the rubric of "Jan Uithoven." (I don't have much luck with technology, but...) Try, try again.
Meanwhile, since we last chatted, my brother Ron L. (who also lives out West, near me) paid a professional to research our Uithoven and Vos lines. Hundreds of family names now available....Vos, Millenaar, van Dyk, etc.