John Hersey (1914–93) was a correspondent for Time and Life magazines when in 1942 he was sent to cover Guadalcanal, the largest of the Solomon Islands in the Western Pacific. While there, Hersey observed a small battle upon which Into the Valley is based. While the battle itself was not of great significance, Hersey gives insightful details concerning the jungle environment, recounts conversations among the men before, during, and after battle, and describes how the wounded were evacuated as well as other works of daily heroism.
John Hersey wrote several nonfiction books and numerous novels, including A Bell for Adano, which won the Pulitzer Prize.