Complex sentence: Pulford was authorised to evacuate himself on 5 February 1942, ten days later Pulford and his naval counterpart, Rear Admiral Spooner, where amongst the last to leave.
Split into simpler sentences: Pulford was authorised to evacuate himself on 5 February 1942. Ten days later Pulford and his naval counterpart, Rear Admiral Spooner, where amongst the last to leave.