Results for "African Americans -- Washington (D.C.)"
Edward P. Henderson
- Date: 1975
- Creator: Sandved, Kjell Bloch 1922-
- Creator: Sandved, Kjell Bloch 1922-
Radiation Biology Lab in Rockville, Maryland
- Date: c. 1975
Odometer Recording Distances Used on Hayden Survey
- Date: 1872
- Creator: Jackson, William Henry 1843-1942
- Creator: Jackson, William Henry 1843-1942
Feather Expert Roxie Laybourne
- Date: 1990
- Creator: Minor-Penland, Laurie
- Creator: Minor-Penland, Laurie
SAO Station Atop Mount Whitney
- Date: 1909
- Creator: Unknown
- Creator: Unknown
Roxie Laybourne and Doug Deedrick with Microscope
- Date: c. 2000
- Creator: Unknown
- Creator: Unknown
Roxie Laybourne and Doug Deedrick with Microscope
- Date: c. 2000
- Creator: Unknown
- Creator: Unknown
Vertebrate Exhibit, Conference on Future of SI
- Date: February 11, 1927 1927
- Creator: Unknown
- Creator: Unknown
Roxie Collie S. Laybourne (1910-2003)
- Date: c. 1950s
- Creator: Unknown
- Creator: Unknown
Joseph Henry Notebook, Sound, Weather, 1865-1866
- Date: 1865-1866
- Creator: Henry, Joseph 1797-1878
- Creator: Henry, Joseph 1797-1878
