I was built in 1870, and was one of the debut liners for the White Star Line. She had features like running water for First Class Passengers! One of her more famous passengers was Nellie Bly, who boarded her on her Round the World in 72 Days trip. She was scrapped in 1896.
II was built in 1899, and was briefly the largest ship in the world. She was meant to have a twin sister Olympic
, but this was cancelled after Thomas Ismay, father of J. Bruce, died. In 1912 she was laid up in Southampton due to a Coal Worker's Strike, and got to see the new Titanic
depart on her maiden voyage. In August 1914 she was requisitioned as an auxiliary cruiser. In August 1914 she was run aground on the Shetland islands and eventually broke up.
III was proposed in 1926, after hearing of Cunard and France line plans for 1000 foot long superliners. She was to have revolutionary diesel engines and possibly be the first White Star ship to take the Blue Riband in 50 years. Her keel was laid in 1928, but progress was slow due to arguments about her design. These were resolved in 1929...right when the Great Wall Street Crash happened and all money everywhere ceased to exist. Work was halted on both her and her erstwhile rival Queen Mary
was cancelled and her keel was repurposed to build the smaller MV Britannic
You can see the resemblance.
In 1934 the Government facilitated a merger of Cunard and White Star and financed the Queen Mary
's construction. Britannic
and her sister Georgic
were the last purpose-built White Star ships and over the years Cunard absorbed White Star's properties until only Cunard remained.
And this third hypothetical ship is for which I am eponymous!
So now you know.