Port Pirie & Themistocles

[tynebuoy]

[Whickham]

I guess that's the 1911 THEMISTOCLES built by Harland & Wolff at Belfast. She lasted till 1947 when she was broken up at Dalmuir.
There are two potential PORT PIRIEs, the 1907 by Hawthorn Leslie or the STAR OF INDIA by Workman Clark in 1910.
She was built as STAR OF INDIA and became PORT PIRIE in 1916 just after the other one changed name.
She looks like a good match for the Hawthorn vessel to me.
See: http://www.tynebuiltships.co.uk/P-Ships ... e1907.html