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Names
- American Red Cross.1
- American Telephone and Telegraph Company.1
- Asher & Adams.1
- Ashmead, Henry Buckley.1
- Bald, F. Clever (Frederick Clever), 1897-1970.1
- Baldwin Locomotive Works.1
- Baltimore & Ohio Railroad Company.1
- Beer, S.1
- Bell Telephone Laboratories, inc.1
- Bell, Alexander Graham, 1847-1922.1
- Bennett, H. H. (Henry Hamilton), 1843-1908.1
- Bentley Historical Library1
- Bonine, Elias A., 1843-1916.1
- Boy Scouts of America.1
- Brassey, Thomas, 1805-1870--Portraits.1
- Brigandi, Philip, 1873-1945.1
- Brunel, Isambard Kingdom, 1806-1859--Portraits.1
- Brush, Charles Francis, 1849-1929--Portraits.1
- Calder, Alexander, 1898-1976.1
- Calumet and Hecla Mining Company.1