William Henry Fairfax (d. 1759), the younger brother to Bryan Fairfax, went to New York in the fall of 1757 and bought an ensign’s commission in the 28th Regiment of Foot. Though Virginia governor Robert Dinwiddie sent him a lieutenant’s commission in the Virginia Regiment in September 1757, William never took up the commission. Fairfax was killed in James Wolfe’s siege of Quebec in September 1759. After Fairfax's death, his brother Bryan inherited from him a 600–acre tract called Nutfield on Chattins Run. 

In April 1758, GW sent William £50 which his brother Bryan repaid in 1761, a year and a half after William's death (see Ledger A, 50).