Isaac M. St. John
Isaac Munroe St. John was a Confederate States Army brigadier general during the American Civil War. He was a lawyer, newspaper editor and civil engineer before the Civil War and a civil engineer after the Civil War. As a civil engineer, he worked for the Baltimore and Ohio Railroad Company and the Blue Ridge Railroad Company in South Carolina before the Civil War. After the war, he worked for the Louisville, Cincinnati and Lexington Railroad in Kentucky the city of Louisville, Kentucky and the Chesapeake and Ohio Railway Company .
Isaac M. St. John was born on November 19, 1827 in Augusta, Georgia. He moved to New York, New York with his parents, Isaac Richards St. John and Abigail Richardson Munroe St. John, and attended Poughkeepsie Collegiate School. He graduated from Yale University in 1845 and became a lawyer. In 1847, St. John became the editor of the Baltimore Patriot. He was a civil engineer with the Baltimore and Ohio Railroad Company between 1848 and 1855. He then moved to South Carolina where he became a civil engineer and chief of construction for the Blue Ridge Railroad Company between 1855 and 1861.
Source: Wikipedia