Sidney D . Jackman Sidney Drake Jackman ( March 7 , 1826 or March 21 , 1828 – June 2 , 1886 ) was an American farmer , teacher , and soldier . He served as an officer in the Confederate Army during the American Civil War , most noted for his performance in the early part of the Battle of Westport in 1864 . After the war Jackman fled to Mexico , then returned to the United States . He again took up farming , served as a state legislator , and later entered law enforcement . Early life and career . Jackman was born in Jessamine County , Kentucky , in the spring of either 1826 or 1828 , the son of Thomas Jackman and his wife Mary Drake . Sometime in 1830 the family moved to Howard County , Missouri , where Sidney Jackman was taught some basic schooling . By late in the 1840s he was living in Boone County , Missouri , where he look up work as a schoolteacher as well as farming . On February 18 , 1849 , Jackman married his first wife , Martha Rachael Slavin , in Boone County , and they would have two daughters and four sons together . Soon after getting married Jackman moved his family to Howard County , Missouri , and in 1855 they settled in Papinville , located in Bates County . In both locales Jackman again was farming and teaching . Jackman organized local militia s while in Papinville to deal with " Jayhawker " and other raids from nearby Kansas , and in 1860 he relocated his family further into Missouri ' s interior to try to avoid these troubles . By the time of the American Civil War , Jackman was a captain in the Missouri State Militia . Civil War service . Jackman chose to follow the Confederate cause in 1861 , and entered the Missouri State Guard . The next year he was appointed the colonel of the 7th Missouri Infantry Regiment , and in May 1862 he led cavalry troops in the raid of Neosho , Missouri . On August 16 Jackman fought at the Battle of Lone Jack , where he led troops that helped capture the Union forces occupying Lone Jack , Missouri , and on August 31 he was given command of the 16th Missouri Infantry . Jackman would serve in the Western Theater , mainly participating in irregular guerilla style tactics against Union targets . By the fall and winter of 1862 Jackman had successfully recruited enough troops to aid the regular Confederate Army raids into Missouri . On January 11 , 1863 , his men entered Union - held Columbia , hoping to free Confederates in the city ' s jail , but the attempt failed . On April 23 Jackman and his troopers kidnapped Missouri Militia ( Union ) Brig . Gen . Thomas J . Bartholow and then set up camp at Glasgow . On June 1 Jackman ' s small command encountered and defeated a group of Federal cavalry , where he reportedly shot the leader of the Union horsemen . In May 1864 Jackman and his men entered Arkansas and were based near the Boston Mountains in the northwest part of the state . By June he had recruited a cavalry regiment that was to be called " Jackman ' s Missouri Cavalry " which was added to Brig . Gen . Joseph Shelby ' s cavalry division of Maj . Gen . Sterling Price ' s Army of Missouri in the Trans - Mississippi Department . That fall Jackman ' s command ( a cavalry brigade consisting of two regiments and two battalions of raw recruits ) participated in Price ' s Raid . During the first stages of the raid Jackman led the attack and capture of Union - held Glasgow . Westport . Jackman fought in the Union victory at the Battle of Westport near modern - day Kansas City , Missouri , on October 22 – 23 , 1864 , one of the war ' s largest clash of mounted troops . During the first day of the battle he led the attack that routing the Federals from their initial position , and early on second day his brigade launched a successful attack directly on Westport . When the Confederate rear collapsed during his attack he was ordered to halt and act as rear guard to fend off the Union pursuit . Two days later in Kansas at the Battle of Mine Creek , Jackman ' s cavalry was ordered to guard Price ' s supply trains and thus missed the Confederate defeat and resulting rout , though his brigade succeeded in slowing the Federal pursuit . During his raids and skirmishes Union soldiers had taken his family into custody in 1865 , as " retribution for his guerilla activities . " At first they were held in St . Louis , Missouri , later moved to Natchez , Mississippi , and finally held at Alexandria , Louisiana , until the end of the war . On May 10 , 1865 , Jackman was promoted to the rank of brigadier general by the commander of the Trans - Mississippi Department , Gen . Edmund Kirby Smith ; however his appointment was never confirmed by the Confederate Congress . Postbellum . With the collapse of the Confederate States in 1865 , Jackman and some of his men decided not to surrender and headed for Mexico . Along the way Jackman reunited with his now - released family in Shreveport , Louisiana , and proceeded with them toward Texas and the border . Near the end of 1865 they arrived in the city of San Marcos , located in Hays County , Texas . Jackman entered northern Mexico , leaving his family in Texas while he ascertained whether to relocate there . Deciding against it , he crossed back into the United States and surrendered to Federal authorities in San Antonio . Taken to New Orleans , Louisiana , took the loyalty oath to the U . S . Government , and was subsequently paroled . During 1867 Jackman bought a ranch near Kyle , Texas , and settled his family there , farming and raising cattle . He and his wife helped found the First Christian Church , Disciples of Christ , and he later was a Blanco Chapel Free School trustee . His wife of 21 years , Martha , died in 1870 . In 1873 Jackman won election as representative to the Fourteenth Texas Legislature . Jackman remarried in 1875 to Cass ( Kyle ) Gains , a widow , and they would have two sons and two daughters together . On March 17 , 1885 , Jackman was appointed the U . S . Marshal for western Texas by U . S . President Grover Cleveland . He held this post until his death at his home in Kyle in June 1886 . He is buried in the town ' s Kyle Cemetery .