Rezin Gist Howell was born around 1841 in Montgomery County, Kentucky, to David and Anna Howell. His father was a farmer who owned $34,500 of real estate and $16,760 of personal property by 1860. He grew up and attended school in Montgomery County.
He enrolled at the United States Military Academy in 1860. When he arrived in June 1860, he described the community as a “perfect hotbed of Abolitionists,” and he “hope[d] I wont sprout soon.” He debated resigning from West Point when the Civil War began, but he ultimately remained loyal to the Union and remained enrolled at the institution. In January 1863, he celebrated General George B. McClellan’s “unexceptionable patriotism,” and he denounced the “baneful sentiments of abolitionism.” He denounced the Emancipation Proclamation, declaring, “Can we not crush this rebellion without violating our constitution? without stooping to negro equality…”
He graduated from West Point in June 1864, and he received a commission as a 2nd lieutenant in the 2nd United States Artillery. He took part in the siege of Atlanta and the Battle of Nashville. He was promoted to 1st lieutenant on March 1, 1865. In April 1865, he mourned the death of President Abraham Lincoln. “Although I disagreed with him on many points,” he wrote, “yet his assassination I think is the most disgraceful blot on our countries [sic] history.”
He remained in the army after the war, and he was stationed in Washington State from October 1865 until November 1868. He spent the next four years in San Francisco, California, and Fort Leavenworth, Kansas, and he was stationed in North Carolina from November 1872 until May 1875. He served as professor of military science at the University of Kentucky from November 1877 until July 1881. He was promoted to captain in November 1882, and he spent the next five years stationed in Alabama. He married Emily D. Ayres on February 5, 1884, and they had at least two children: Anna, born around 1885; and Mary, born around 1886. He died of “acute gastric catarrh” at Mount Vernon Barracks, Alabama, on May 2, 1887.