[1][2] The third and last locomotive to be placed in service by the Natal Railway Company was a broad gauge 4-4-0T} "American" type engine.

The locomotive arrived in Durban on board the ship Parthenia on 10 January 1876 and was offloaded with some difficulty on the following day.

[4][5] The locomotive's cylinders were mounted outside the frame and were lubricated by gravitation from two tallow cups, attached to the smokebox sides immediately above the steam chests.

[5] By 25 January 1867, the original 2 miles (3.2 kilometres) of track between Market Square in Durban and Point station at Durban harbour had only been extended a further 3.5 miles (5.6 kilometres) to Umgeni, from where stone, quarried from the Umgeni River, was transported to the harbour.

The work in connection with regauging it to the new Cape gauge commenced immediately after the arrival of the last train on the Saturday evening and was completed late on Sunday night.

It is surmised that the second locomotive, the saddle-tank engine Durban of 1865, was possibly regauged to Cape gauge and retained in service, but such a modification has not been confirmed.

[9][11] While the engine Perseverance was scrapped only eleven years after entering service, one of the later model Trinidad locomotives was preserved and plinthed on Harris Promenade in San Fernando.