Caroline  boarded Titanic with her two sisters, Malvina Cornell and  Charlotte Appleton. They were returning from England after attending the funeral of another sister, Lady Victor Drummond. The sisters travelled unaccompanied. 

The sisters were friends of Colonel Archibald Gracie IV, another passenger on the voyage and he commented that they made a quartet with their friend Miss Edith Evans. On the night of the disaster the sisters were seperated. Caroline and Edith Evans were assisted by Gracie to board collapsible D the final boat to leave the ship successfully. It appears Edith Evans insisted Brown went ahead "You go first, you have children waiting at home." Some accounts claim there was no mor eroom left, althogh this was clearly not true, other accounts suggest no mor ewomen were visible, but regardless of the reason, it meant Caroline was probably the last woman to safely evacuate the Titanic and Edith perished. 

Aboard the Carpathia Caroline was joyfully reunited with his sisters.  In an extraordinary coincidence the sisters discovered their uncle Charles H. Marshall was a passenger on the Carpathia.