Medal of Honor | Meritorious Service Medal (United States) | Meritorious Service Medal | Bronze Star Medal | National Defense Service Medal | Newbery Medal | Distinguished Service Medal | Air Medal | Brownlow Medal | Distinguished Service Medal (Army) | Defense Superior Service Medal | Presidential Medal of Freedom | National Medal of Science | Congressional Gold Medal | Caldecott Medal | Vietnam Service Medal | Commendation Medal | Distinguished Conduct Medal | medal | IRI Medal | Davy Medal | Queen's Police Medal | Military Medal | Medal | Linnean Society of London | Vietnam Campaign Medal | Defense Distinguished Service Medal | Achievement Medal | King's Medal of Merit | Fields Medal |
He received the Victoria Medal of Honour from the Royal Horticultural Society in 1902 and the Linnean Medal from the Linnean Society of London in 1903.