Communications and Intelligence |
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Allan Pinkerton with His Men188 views
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Federal Observation Balloon Intrepid236 views
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Scouts and Guides262 views
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Teams Constructing Telegraph Lines229 views
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Signal Tower at Cobb's Hill235 views
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Allan Pinkerton202 views
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Bureau of Military Information215 views
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Prof. Thaddeus S. Lowe and Balloon Intrepid200 views
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Allan Pinkerton, President Lincoln, and General John A. McClernand183 views
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Allan Pinkerton, President Lincoln, and General John A. McClernand176 views
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Military Telegraph Operators214 views
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Scouts and Guides182 views
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