John Gregg (September 28, 1828 – October 7, 1864) was an American politician who served as a deputy from Texas to the Provisional Congress of the Confederate States from 1861 to 1862. He served as a brigade commander officer of the Confederate States Army and was killed in action during the Siege of Petersburg. Early life and career John Gregg was born in Lawrence County, Alabama, to Nathan Gregg and Sarah Pearsall Camp. He graduated from LaGrange College (now the University of North Alabama) in 1847, where he was subsequently employed as a professor of mathematics. He later studied law in Tuscumbia, Alabama. Gregg relocated to Freestone County, Texas, in 1852, and settled in the town of Fairfield, Texas. In May 1854, John was initiated into the Masons at Fairfield Masonic Lodge 103 A.F. & A.M. He was elected as a district judge and served in that position from 1855 until 1860. In 1858, Gregg married Mary Francis "Mollie" Garth from Alabama, daughter of Jesse Winston Garth, a Unionist who was willing to give up his hundreds of slaves if it meant saving the Union. John and Mary appear in the 1860 US census in Fairfield, Freestone County, Texas. Gregg was one of the founders of the Freestone County Pioneer, the first newspaper in Freestone County. He used his paper and political clout to call for a secession convention following the election of Abraham Lincoln as President in 1860. Gregg served as a delegate to the Texas Secession Convention in Austin, in January 1861. The delegation issued the Ordinance of Secession on February 1, 1861. Gregg was one of six members of the convention who were elected to represent Texas in the Provisional Confederate Congress in Montgomery, Alabama, and later in Richmond, Virginia. American Civil War Gregg served in the Provisional Congress of the Confederate States on February 15, 1861, from which he resigned in August 1861 to enter the Confederate Army. He returned to Texas and formed the 7th Texas Infantry, becoming its colonel in September. Gregg and the 7th saw their first action at the Battle of Fort Donelson from February 12 to February 16, 1862, where they were captured along with most of the garrison. His men were sent to a prisoner-of-war camp called Camp Douglas located near Chicago. He was sent to Fort Warren in Boston, Massachusetts for confinement. Gregg was exchanged on August 15, 1862,