After doing some research on the matter it seems that the US and England have captured all german civilian vessels from WW1 to 1939 .. i had already heard that Albert Ballin, german ship owner of the HAPAG and Lloyd had committed suicide after his big, fast passenger liners were all commandeered (does one say so?) to the Entente, and later just confiscated in the harbours they happened to be.
Still, i have no clue about this special one