William was mentioned in the 9 March 1783 will of his father, Martin Nalle, proved 15 September 1788. To my Beloved wife Isabell the third part of my Estate During her Life or Widowhood & after Decease or second marriage that part of my Estate to be sold and the money to be Equally Divided among my Children namely William Nalle, Martin, Ann, Rachel, Winney & Clary Milly & my Grand Daughter Caley Parks. To son William Nalle Fifty pounds Specie to buy him a negro which sum he is to account for in the General Division of my estate … The balance of my estate both Real and Personal is to be Advertised in the Virginia, Maryland and Pensylvania Gazettes Four months before the day of Sale and to be sold to the Highest Bidder and the Money arising from ye said Sale to be Equally Divided among my Seven Children and my Gran Daughter above mentioned, if my Gran Daughter Caty Parks should die Without heir that that [sic] part of Estate to Return to Mary Holloday [blank] other Children, [blank]. Beloved wife Isabell and sons William & Martin Nalle & my son in Law Humphrey Sparks to be Executrix and Executors. [Culpeper County, Virginia, Will Book C, pages 315–316.]