Communications and Intelligence |
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Allan Pinkerton with His Men721 views
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Federal Observation Balloon Intrepid625 views
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Scouts and Guides618 views
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Teams Constructing Telegraph Lines622 views
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Signal Tower at Cobb's Hill603 views
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Allan Pinkerton526 views
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Bureau of Military Information550 views
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Prof. Thaddeus S. Lowe and Balloon Intrepid493 views
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Allan Pinkerton, President Lincoln, and General John A. McClernand465 views
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Allan Pinkerton, President Lincoln, and General John A. McClernand456 views
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Military Telegraph Operators579 views
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Scouts and Guides649 views
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