17 May 1745 - William Beall and Ninian Beall of Prince Georges's County convey to John Contee 696 acres of Largo Patented to Alexander Beall and William Offutt. 7 Dec. 1703, now the property of William and Ninian as hears of Alexander Beall. William Beall received 110 pounds Sterling and Ninian received 90 pounds Sterling. Elizabeth Beall, wife of William and Ruth Beall, wife of Ninian waived dower. Book BB page 306 Land Office, P.G. Co.
(I'm not quite sure about that 1703 date . . . I think it's a typo and I'm not sure what the correct date would be as I haven't looked at the original document).