Isaac Winslow, Jr., s/o Joshua, graduated 1751 Boston Latin School, 1762 Harvard (faculty records give birth 24 Sep 1743), d. 20 Jan 1793 (per Columbian Centinel of 23 Jan 1793: "In this town, suddenly, Mr. Isaac Winslow, sen. - His funeral will proceed from his dwelling-house in Sudbury Street, this afternoon, at half-past 3 o'clock, which his friends and relations are requested to attend without further invitation."), m. (1) 22 Nov 1770 Margaret Sparhawk [Essex Gazette of Tuesday 20-27 [sic] Nov 1770: "Salem, November 27. Last Thursday Mr. Isaac Winslow, jun. of Boston, Merchant, was married to Miss Peggy Sparhawk, Daughter of the late Reverend Mr. Sparhawk, of this Place, deceased, and Niece of the Hon. Nathaniel Sparhawk, Esq; of Kittery."], m. (2) 20 Apr 1772 Mary Davis.