One of the deaths was due to a medical problem (possibly a consequence of scurvy), and the others occurred when Aeneas Macintosh, the leader of this part of the

One of the deaths was due to a medical problem (possibly a consequence of scurvy), and the others occurred when Aeneas Macintosh, the leader of this part of the expedition, chose to cut across sea ice, with another expedition member, and they were blown out to sea by a storm. Macintosh had narrowly escaped from this fate in an earlier incident, but for the wind shifting and blowing them back again.