|The SS Minmi was built in Glasgow, Scotland in 1927. It was 75 metres long, and displaced 1455 tons. The Minmi was a collier, carrying coal from Newcastle to Melbourne and returning empty. It was named either after the lower Hunter Valley town of Minmi, or the nearby Minmi Colliery.|
On 8 May 1937 the Minmi left Melbourne for Newcastle under Captain Robert Clark Callum. The Minmi's captain for all of her ten year service was a Captain McPhall, who had brought the ship to Australia. Captain McPhall commenced two weeks leave in the first week of May, leaving chief officer Callum to take over as Captain. At 10pm they were off Botany Bay in heavy seas and dense fog, and shortly after the ship struck the outside of Cape Banks, the outer northern headland of Botany Bay.