Dianah Rector's history is well set out in The Germanna Record, No. 4 and 5, which takes her Rector/Richter and Fischbach family lines back to Tyl van Fispe in the Nassau-Siegen area of the German Palatinate in the fifteenth, and sixteenth centuries. Her mother is believed to be Ann "Nancy" Spencer because, as was the custom of the period to give a son the maiden name of the mother, Henry and Ann Rector named a son "Spencer" and the name was carried down for a number of generations. The Germanna Record No. 4, page 13, paragraph (7), contains the indication that Ann, wife of Henry Rector, might be the sister or daughter of James Spencer of Prince William County, Virginia.

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May 2, 1808, Jacob and Diannah sold land in Faquier County, Virginia which Diannah had inherited from her father, Henry Rector. The land was sold to George Glasscock, husband of Diannah's sister, Hannah.
Fauquier County, Virginia Deed Book 17, page 246 11