There was also another reason for publishing a supplement to the Memoir of Dr. Jackson, namely, that in that volume, through an accident in the final reviewing of the manuscript, the account of the well-known first marriage of Jonathan Jackson to Sarah Barnard, daughter of the Rev. Thomas Barnard of Salem, though it had been carefully written out, failed to get into print. The third marriage of Capt. Patrick Tracy, to Mary, widow of Michael Dalton, was also unreported, and indeed was not known to the editors until recently. In the present pamphlet these omissions are made good and a few additional facts of interest are recorded.