Porter, Fitz-John, 1822–1901, Union general in the American Civil War, b. Portsmouth, N.H.; nephew of David Porter. He saw service in the Mexican War and was an instructor at West Point (1849–55). At the outbreak of the Civil War, Porter was made a brigadier general of volunteers. In 1862 he distinguished himself as a corps commander in the Peninsular campaign, especially in the Seven Days battles . Later that year, however, John Pope alleged that the Union defeat in the second battle of Bull Run was due to Porter's disobedience. At his court-martial Porter declared that it was impossible to carry out Pope's orders, but he was, nevertheless, cashiered. A review of the case in 1879 vindicated him. In 1886 he was reappointed colonel of infantry and retired.
See study by O. Eisenschiml (1950).
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