"However far the stream flows it never forgets its source." (Yoruba Proverb). Oxon Hill Library, Oxon Hill, MD
"However far..." 
 
Prince George's County panel
 
Glass beads, cowrie shells, clay pipes found at nearby slave sites, tobacco flowers, African American pilot, John Greene, Fort Washington, Hubbell telescope (NASA is nearby)
 
Photo by Howard Ehrenfeld
Prince George's County panel
Glass beads, cowrie shells, clay pipes found at nearby slave sites, tobacco flowers, African American pilot, John Greene, Fort Washington, Hubbell telescope (NASA is nearby)
Photo by Howard Ehrenfeld
2006
Fort Washington photo, National Park Service, Dept. of the Interior 
Hubbell telescope photo courtesy of NASA 
Herman map, Maryland State Archives 
John Greene photo, Oxon Hill Library and Prince George's County Parks and Recreation 
Tobacco plant, William Curtis Botanical Magazine, Atlanta History Center
