Here is what I have found so far. Nathan was married to Margaret in Prince Georges MD - date unknown. He was married to Sarah in Grayson Co., VA per deeds and will in the last few years of his life. His will lists 4 sons, Nathan, Jr., William, Wells and Enoch along with wife, Sarah. Via circumstantial evidence, it would seem there were at least 2 daughters, Margaret who married Morris Davis and Elizabeth who married Jeffery Clark. Though there is no direct connection for these 2, they lived and married men in the Cole Creek area of Grayson where Nathan lived, They are supposedly buried in the Cole Creek area, The other Nathan Ward in Grayson Co., lived in the Saddle Creek area, quite some distance from the Cole Creek area and most of his family owned land in that area, which somewhat distinguishes the two from each other. I have found birth dates for Nathan, Jr and William in the 1770's and Enoch probably the same time period. Same for the 2 daughters.
Margaret (1st wife) is said to be buried in the Cole Creek area of Grayson Co., though there is no gravestone to prove it. Sarah seems to have still been living as late as 1822 per deeds she signed, and maybe later. If Margaret lived until 1811 and was buried in the Cole Creek area, there is a significant overlap between she and Sarah. Did Nathan divorce Margaret and marry Sarah? I am finding lots of pieces of this family's info, but some of the pieces don't seem to fit exactly. This whole family is one of the biggest enigmas of any I have researched, and it is frustrating.