The Treasure of Panther Peak-Illustrations

The collection contains drafts and final manuscripts of her works The Summer of Bonepile Monster and The Monkey Thief, correspondence with her editor and with her fans. The material relating to book manuscripts is arranged by title. The incoming correspondence is filed alphabetically by surname of the sender, when known. If the sender was writing on behalf of an organization, the letter is alphabetized under the parent body. Items for which authorship is unclear are located at the beginning of the letters. Outgoing letters, when not attached by Henderson to the original incoming letter, are arranged chronologically.

The collection also contains a United States Army Women's Corps uniform [not AKH's actual uniform; the attached insignia may or may not be hers either]: jacket, blouse, skirt and garrison cap, circa 1944-1951 in tan tropical worsted cloth, insignia (Aviation Cadet insignia and Army Air Forces Command shoulder sleeve insignia); a United States Army Freedom Team Salute Certificate of Appreciation with U.S. Army Veteran lapel pin and two window decals; and an Alabama Golden Eagle Journalism Medal of Honor Award inducting AKH into the 2008 Alabama Senior Citizens Hall of Fame certificate (framed) and lapel pin on red, white and blue ribbon.