Post WW1: Eric joined the Dunedin-based Union Steamship Co. of New Zealand Ltd (1875-2000) as an engineer and his maritime career with the company was marked by at least two significant events, both sinkings.

On 19 August 1930, Denby was third engineer on the RMS Tahiti when she sank near Rarotonga en route from Wellington to San Francisco, following a holing two days previously caused by the breaking of a propeller shaft. All were rescued. Three years earlier the Tahiti had accidentally rammed the ferry Greycliffe in Sydney Harbour resulting in the death of 40 passengers. We don’t yet know if Denby was present on the Tahiti at that time.

On December 8 1940 Denby was second engineer onboard the SS Komata when she was sunk off Nauru by the German raider Komet. Most of the crew were rescued and taken on board to join the survivors of other cargo & passenger vessels sunk over the previous month by the raider and her two fellow hunters. Denby was one of nearly 500 captives eventually marooned by the Germans on Emirau Island.