I think the one in front is an Austin A40 Dorset, and the one behind is a Minor convertible. I've just discovered that the headlights on export Minors were raised from either side of the rad grille as per home production, and Minors were big in Aden. I can still see Miss Buckle arriving from her home in Steamer Point. Service personnel could buy cars tax-free and take them home. I remember Tubby Trinnick bought a Ford Prefect and was the talk of Croft concentrationxxxx transit camp when it appeared with its ADN registration.
By the way, in the background is the Cowasjee Dinshaw department store. He was a far-sighted Parsee from Bombay who foresaw the importance of Aden after the Suez Canal opened in 1869, and did much to develop the port and help its people. He became known as Aden-wallah and troopship tenders came and went via the Dinshaw Pontoon as there were no deep-water quays.
Errrr ... I started this, but how much farther off-thread can we go?