topic

• Geometry6
• Study and teaching6
• Battlefields2
• Bull Run, 2nd Battle of, Va., 18622
• Health aspects2
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name

• Leslie, Alexander, ca. 1740 179413
• Alexander, William, Earl of Stirling8
• McCulloch, William Alexander, 1810-19006
• Albany Congress (1754 : Albany, N.Y.)5
• Alexander, James4
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collection

• Thomas Addis Emmet collection, [legacy collection]59
• Thomas Addis Emmet collection11
• Century Company records9
• Genet family papers6
• Duyckinck family papers3
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place

• United States8
• Bull Run2
• Bull Run (Loudoun County-Fairfax County and Prince William County, Va.)2
• Prince William County (Va.)2
• Virginia2
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genre

• Documents62
• Correspondence37
• pages (components)6
• Photographs3
• Maps2
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division

type

• text98
• still image11
• cartographic2