He authorized Lieutenant Gustavus Doane to escort the Washburn Expedition in 1870 and for Captain John W. Barlow to escort the Hayden Expedition in 1871.
Han udpegede løjtnant Gustavus Doane til at eskortere Washburn-ekspeditionen i 1870 og kaptajn John W. Barlow til at eskortere Hayden-ekspeditionen i 1871.