High Quality Content by WIKIPEDIA articles! Arthur Forrester Devereux (April 27, 1838 – February 13, 1906) was a captain in the Massachusetts Volunteer Militia prior to the Civil War and a colonel in the Union Army during the Civil War. He is notable for his expertise and proficiency in the instruction of military drill. During the Battle of Gettysburg, the 19th Massachusetts, under his command, played an important role in filling a breach in the Union lines during Pickett`s Charge. After his active service had concluded, Devereux was awarded the honorary rank of brevet brigadier general, United States Volunteers, by appointment of President Andrew Johnson on February 21, 1866 to rank from March 13, 1865, and confirmation by the U.S. Senate on April 10, 1866.