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American Swedish Historical Museum John Ericsson collection, 1859-1890 (bulk) 1838-1938 (inclusive)

Held at: American Swedish Historical Museum [Contact Us]

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Craven Hall Historical Society records, 1978-2013 (bulk) 1900-2013 (inclusive)

Held at: Craven Hall Historical Society [Contact Us]

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Morris Evans Leeds papers, 1862-1944 (inclusive) 1862; 1942 (bulk)

Held at: Haverford College Quaker & Special Collections [Contact Us]

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Andrea Sutcliffe book research files for "Steam", circa 2000-2004

Held at: Craven Hall Historical Society [Contact Us]

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The Historical and Interpretive Collections of The Franklin Institute manuscript collection, 1762-2003 (inclusive)

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]

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Henry R. Heyl papers, 1876-1917 (inclusive)

Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]

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Eugene Jules Houdry Collection, 1919-2000 (inclusive) 1942-1962 (bulk)

Held at: Science History Institute Archives [Contact Us]

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Norman G. Anderson Papers, 1904-2018 (inclusive) 1943-2010 (bulk)

Held at: Science History Institute Archives [Contact Us]

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Percy David Hedderwick papers relating to printing press inventions, 1864-1905 (inclusive)

Held at: University of Pennsylvania: Kislak Center for Special Collections, Rare Books and Manuscripts [Contact Us]