查理斯道格拉斯 Charles Douglass) 弗雷德裏克道格拉斯的三兒子

出處: Wasson, Chuck, photographer (Original photo by Rice, Washington, DC.). "Charles Douglass Carte-de-Viste Catalog Number: FRDO 3908 Third youngest son of Frederick Douglass." Parks & History Association copyright 1998. Courtesy of ParkNet, National Park Service.