[2] He married a daughter of Lieutenant-colonel Ewan Macpherson, who was at one time stationed with the 99th Regiment of Foot in Tasmania.
Her sister, Mary Macpherson, married Alfred Cox, who was thus his brother-in-law.
[3][4] He was on the committee of the Canterbury A&P Association from 1882 until his death, and was president in 1882.
[5] The vacancy on the board of the A&P Association was filled by appointing Arthur Rhodes.
[6] Gray died suddenly on 14 July 1895 at his home in the Christchurch suburb of Hoon Hay from a cerebral hemorrhage.