Complex sentence: Among those killed by the blast were three officers from "Kingston" Commander Peter (or Philip) Somerville DSO., Lieutenant P. Hague and Sub-Lieutenant J. Carter, as well as five other sailors from the destroyer.
Split into simpler sentences: Among those killed by the blast were three officers of "Kingston" Commander Peter (or Philip) Somerville DSO., Lieut. Lt. J. Carter, as well as five other sailors of the destroyer.