John was mentioned in the 11 April 1742 will of his father, William Gray. I lend unto my loving wife Mary my now dwelling Plantation and the Land thereunto adjoining and included within the long branch and Maxamilian Robinsons line During her Natural life. I Lend unto my Loving wife my Negro woman Judith and my Negro man Manzer and my Negro man Toney for and During her Natural life. I give to my son John Gray all that my now dwelling Plantation (before lent to my wife) after the decease of his Mother. I give and bequeath unto my sd Son John Gray my Negro boy Dick and my Negro Girl Nan and her increase (except her first Child that shall live to the age of five years at which age I give and bequeath the said Child unto my Daughter Sarah Gray). All the remainder of my Personal Estate unto Loving wife and my four Children to be equally divided. On 19 October 1742, presented in court by Mary Gray the Executrix therein Named. John Andrews was by the Court appointed Guardian to John Gray an Infant heir at Law to the said deceedant to make his objections on behalf of the said John Gray against the Proof of the said Will, and the said John Andrews now Coming into Court and declaring that he had not any objections to make on behalf of the said John Gray to the Proof thereof thereupon the said Mary had the oath of an Executor Administered, the will being proved by Stephen Chenault, John Andrews, and Henry Harman.[Essex County, Virginia, Will Book 6, pages 387–389.]