Private John H Callahan was assigned to the US Army.
John received the Medal Of Honor
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The contained information on John H Callahan is gathered and extracted from military records from a variety of sources. This material in no way represents this serviceman's complete military record; we welcome additional material. If you can help add to Private John Callahan's military record please contact us. This can include award citations and photos. . .
Civil War, 1861-1865
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