P. G. T. Beauregard P. G. T. Beauregard Pierre-Gustave Toutant de Beauregard (May 28, 1818 – February 20, 1893) was an American military officer who was the first prominent general of the Confederate States Army during the American Civil War. Today, he is commonly referred to as P. G. T. Beauregard, but he rarely used his first name as an adult. He signed correspondence as G. T. Beauregard. Trained as a civil engineer at the United States Military Academy, Beauregard served with distinction as an engineer in the Mexican–American War. Following a brief appointment as superintendent at West Point in 1861, after the South
Confederate Army of the Potomac Confederate Army of the Potomac The Confederate Army of the Potomac, whose name was short-lived, was the command under Brig. Gen. P. G. T. Beauregard in the early days of the American Civil War. Its only major combat action was the First Battle of Bull Run. Afterwards, the Army of the Shenandoah was merged into the Army of the Potomac with Gen. Joseph E. Johnston, the commander of the Shenandoah, taking command. The Army of the Potomac was renamed the Army of Northern Virginia on March 14, 1862, with Beauregard's original army eventually becoming the First Corps, Army of Northern