I recently found a very formal portrait photo amongst all my Grandmother's photo albums, which was stored inside a folder simply labelled "Gov General Clarendon".
I did a bit of sleuthing online and I believe it may be an official portrait of the 5th Governor-General to South Africa, George Herbert Hyde Villiers, who was the 6th Earl of Clarendon, together with his wife, Adeline Verena Ishbel Villiers (nee Cocks).
I'd love others to take a look and see if they agree (or disagree) with my findings.