The collection primarily consists of photographic prints and negatives related to the 1909 Willie Boy manhunt. This includes photographs taken by R. W. Madison as a journalist covering the story for the Los Angeles Record, and related photographs collected by Madison. Images depict the Oasis of Mara at Twenty-Nine Palms, portraits of posse members and of Willie Boy, and the posse posed with the alleged body of Willie Boy. Also included are Madison's written account of finding Willie Boy’s body, a photograph of a newsroom, and a pamphlet for the Newspaper Enterprise Association.