 On February 3, 1865, the Hampton Roads Conference took place on the "River Queen" in an unsuccessful attempt to negotiate an end to the American Civil War.While the conference was being held in the saloon of the ship, the "River Queen" was lashed to the "Mary Martin", another ship.In March 1865, Abraham Lincoln met with General William T. Sherman, Rear Admiral David Dixon Porter and General Grant aboard the "River Queen" to discuss strategy for the end of the Civil War.