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John H. Elfman family and business papers, 1930-2012 (inclusive)
Held at: Doylestown Historical Society [Contact Us]
Held at: Doylestown Historical Society [Contact Us]
Held at: Doylestown Historical Society [Contact Us]
Held at: Doylestown Historical Society [Contact Us]
Held at: Doylestown Historical Society [Contact Us]
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Held at: The Historical and Interpretive Collections of The Franklin Institute [Contact Us]
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Held at: Fairmount Park Historic Resource Archives [Contact Us]
Held at: Fairmount Park Historic Resource Archives [Contact Us]
Held at: Fairmount Park Historic Resource Archives [Contact Us]
Held at: Fairmount Park Historic Resource Archives [Contact Us]
Held at: Fairmount Park Historic Resource Archives [Contact Us]
Held at: Fairmount Park Historic Resource Archives [Contact Us]
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Held at: Grand Army of the Republic Civil War Museum and Library [Contact Us]
Held at: Grand Army of the Republic Civil War Museum and Library [Contact Us]
Held at: Glen Foerd on the Delaware [Contact Us]
Held at: Glen Foerd on the Delaware [Contact Us]
Held at: Glen Foerd on the Delaware [Contact Us]
Held at: Goschenhoppen Historians, Inc. [Contact Us]
Held at: Germantown Historical Society [Contact Us]
Held at: Germantown Historical Society [Contact Us]
Held at: Germantown Mennonite Historic Trust [Contact Us]
Held at: Haverford Township Historical Society [Contact Us]
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Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Science History Institute Archives [Contact Us]
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: Drexel University: Archives and Special Collections [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [Contact Us]
Held at: Temple University Libraries Special Collections Research Center [Contact Us]