On 30 Mar 1763, John Whitley and wife Sarah sold to brother William Whitley 50 acres called 'Hog House Branch' adjoining Michael Brac(e)y. [IOW dB 11, page. 117]
On 2 Mar 1773, John Whitley and wife Sarah sold another 50 acres to William Whitley. [IOW dB 13, page. 57]
(Source: Internet Web page of Jerry A. Enfield 501 Latane Dr. Richmond, VA
On 31 Aug 1774, John Whitley and wife Sarah of Newport Parish sold to George Turner 60 acres called 'Broad Neck' adjoining Mirey Branch, William Whitley, and John Edwards. [IOW DB 13, page. 229]
(Source: Internet Web page of Jerry A. Enfield 501 Latane Dr. Richmond, VA.)
(In 1781, we find that John Whitley cared for an orphan of Henry Tynes.)
Volume III, Will book 9 page 66:
Tynes, Henry: Account estate, to paid John Whitley for keeping the child two years. Examined by William Blunt and William Morrison. Signed, Sarah Tynes Recorded: April 01, 1781.
(Source: Book, Wills, and Administrations of Isle of Wight County, Virginia 1647-1800, page 249. Research by Richard W. Chandler.)
IGI records have 2 Johns born to John and Mary, one with the birth date as posted, the other much earlier in 1684.