Group of stereoview portraits depicting notable literary and historical figures. The group includes a stereograph labeled “Inventor Alexander Graham Bell,” showing the inventor seated at a desk reading a book beside a window. Another view is titled “Author Mark Twain,” portraying the celebrated American writer reclining in bed while reading, an informal and intimate portrait that contrasts with the more formal photographic representations typically produced during his lifetime. A large portrait stereograph depicts Walt Whitman, the influential American poet and author of Leaves of Grass, shown with his distinctive long beard and contemplative expression. Additional images include later twentieth-century stereographs such as a color view depicting George H. W. Bush standing with another man indoors. Together these stereographs illustrate the enduring use of the stereoscopic format for portraiture, presenting well-known writers, inventors, and public figures in both formal and candid settings for popular viewing and educational collections.