Complex sentence: Then he boards the Schenellendampfers "Kaiser Wilhelm der Grosse" on June 7,1904, to cross the Atlantic with a seat at Herr Capt. O. Cüppers table.
Split into simpler sentences: Then he boards the Schenellendampfers "Kaiser Wilhelm der Grosse" to cross the Atlantic. He has a seat at Herr Capt. O. Cüppers table.