It's probable that he received his DFC for bringing back a crippled Halifax with one member of his crew dead and two wounded after a raid on Hamburg with the No. 76 Squadron. Elder ordered the unwounded members of his crew to bale out (they landed safely) because of the possibility that his plane would crash-land. Then, he straped the badly injured rear gunner in the rest position and, together with the injured engineer, helped the Halix landing on the grass outside the runway. The Halifax jumped a ditch, went trough a fence and was eventually stopped by some tree stumps, wich teared off the port engines.