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General correspondence relating to Civil Works projects originating under the Wilmington and Philadelphia Engineers, 1907-1943 (bulk) 1871-1948 (inclusive)
Held at: National Archives at Philadelphia [Contact Us]
Held at: National Archives at Philadelphia [Contact Us]
Held at: City of Philadelphia, Department of Records, City Archives [Contact Us]
Held at: Philadelphia Archdiocesan Historical Research Center [Contact Us]
Held at: Philadelphia Archdiocesan Historical Research Center [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Haverford College Quaker & Special Collections [Contact Us]
Held at: Princeton University Library: Rare Book Collection [Contact Us]
Held at: Friends Historical Library of Swarthmore College [Contact Us]