Contraband fugitive African-American slaves poured into Grant's district, whom he sent north to Cairo, to be integrated into white society as domestic servants in Chicago. However, Lincoln ended this move when Illinois political leaders complained. On his own initiative, Grant set up a pragmatic program and hired a young Presbyterian Chaplain John Eaton to administer slave refuge work camps. Compensated contraband freed slaves would be used to pick cotton that would be shipped north and sent to aid the Union war effort. Lincoln approved and Grant's camp program was successful. Grant also worked freed black labor on the bypass canal and other points on the river, incorporating them into the Union Army and Navy.