Author
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McCormick, Cyrus Hall, 1809-1884
1
McCormick, Cyrus, 1890-1970
1
Melchior, Armstrong, Dessau Co
1
Morgan, Dayton S.
1
National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques (U.S.)
1
Navin, Thomas R.
1
Pennsylvania Agricultural Works (York, Pa.)
1
Philadelphia Bourse
1
Philadelphia War Photograph Committee (Pa.)
1
Philadelphia War Photograph Committee : Henry C. Howland, International Film Service, J.E. Green, J.W. Replogle, Harry Gruber
1
Potts, William McCleery, 1856-
1
Pound, Arthur, 1884-1966
1
Ransome Concrete Machinery Co
1
Rau, William Herman, 1855-1920
1
Rees, Jonathan, 1966-
1
Replogle, J.W., photographer
1
Rochester Agricultural Works (Rochester, N.Y.)
1
Rodenhausen's Excelsior Wagon Work Business Records
1
Rogin, Leo, 1893-
1
Rupp, Warren E.
1
Schaffer, Erv
1
Scott and Van Altena Company
1
Seaton, Chas. W. 1831-1885
1
Sellers, Coleman, 1781-1834
1
Sellers, George Escol
1
Seward, William H. 1801-1872
1
Seymour, William H., active 19th century
1
Shank, Michael W.
1
Silver, Rollo G. 1909-1989
1
Smith, William Wikoff
1
Socialist Society, USA
1
Spangler Manufacturing Co. (York, Pa.)
1
Speece, Glenn Harrison
1
Stabler, E. 1794-1883
1
State Historical Society of Wisconsin
1
Stern, Boris, 1892-
1
Sutcliffe, J. V.
1
Swift, R. B.
1
Thompson, Sanford Eleazer, 1867-
1
Thwaites, Reuben Gold, 1853-1913
1
Trowbridge, W. P. 1828-1892
1
United States Census Office 10th census, 1880
1
United States Circuit Court
1
United States. Bureau of Mines
1
Walker, Francis Amasa, 1840-1897
1
Westaway, C. R.
1
William Sellers & Co. (Philadelphia)
1
Woodward & Lothrop
1