IN the closing chapters of Good Wives, Nasty Wenches, and Anxious Patriarchs, Kathleen M. Brown concludes, from a reading of William Byrd's diaries, that between I739 and I74I-though Byrd was, to all appearances, contentedly married and nearing seventy-he frequently engaged in sexual activity with enslaved women.1 Byrd was undeniably anxious at many points in his life, and, on at least occasion, writing to Charles Boyle after his return to Virginia in I726, he famously compared himself to one of the patriarchs.2 The term nasty wenches never appears in Byrd's diaries or other writings, but, in view of the conclusion that Brown draws about his sexual conduct, he would seem to exemplify the exploitative habits and invidious attitudes that her title evokes-habits and attitudes that Brown finds largely confirmed by the major literary works of Byrd's life, The History of the Dividing Line betwixt Virginia and North Carolina and The Secret History of the Line.3 William Byrd has come to share, with Thomas Jefferson, the dubious distinction of being our representative eighteenth-century planter-libertine.4 But such a reading of Byrd imposes a degree of clarity on the textual evidence that, in some respects, resembles the artificial order that a surveyor's