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
First Battle of Bull Run in Washington City, including Rose O'Neal Greenhow, a prominent socialite with a wide range of contacts. He provided her with a code for messages. After he left to join the Confederate Army, he gave her control of his network but continued to receive reports from her. On July 9 and 16, 1861, Greenhow passed secret messages to Confederate General P.G.T. Beauregard containing critical information regarding military movements for what would be the First Battle of Bull Run, including the plans of Union general McDowell. On July 16, 1861, McDowell departed Washington with the largest field army yet gathered on the