
The county was created in 1858 from portions of Lowndes and Thomas counties by an act of the Georgia General Assembly and was named for pro-slavery U.S. Representative Preston S. Brooks after he severely beat abolitionist Senator Charles Sumner with a cane for delivering a speech attacking slavery.
Many residents of Lowndes County were unhappy when the Atlantic and Gulf Railroad announced June 17, 1858 that they had selected a planned route that would bypass Troupville, the county seat. On June 22 at 3:00 am, the Lowndes County courthouse at Troupville was set aflame by William B. Crawford, who fled to South Carolina after being released on bond.
On August 9, a meeting convened in the academy building in Troupville, at which residents decided to divide Lowndes and create a new county to the west of the Withlacoochee River, to be called Brooks County.
On December 11, 1858, Brooks County was officially organized by the state legislature from parts of Lowndes and Thomas counties. It was named for Preston Brooks, a member of Congress prior to the Civil War. He was very popular in the South because of his 1856 caning of abolitionist senator Charles Sumner, and the citizens of Georgia wanted to honor him. Brooksville, Florida, and Brooksville, Virginia, also named or renamed themselves for Brooks.
The county had been developed along the waterways for cotton plantations, dependent on enslaved laborers, many of whom were transported to the South in the domestic slave trade during the Antebellum years. Cotton brought a high return from local and international markets, making large planters wealthy. At the time of the 1860 federal census, Brooks County had a white population of 3,067, a Free people of color population of 2, and a slave population of 3,282. The Atlantic and Gulf Railroad reached Quitman, the county seat, on October 23, 1860.
During the Civil War, the county was the main producer of food for the Confederacy; it became known as the "Smokehouse of the Confederacy."
Some Confederate Army regiments were raised from the men of Brooks County. Plantation owners, county officials, and slave patrol members were exempt from military conscription, which caused some contention between the different economic classes in Brooks County.
In August 1864, a local white man named John Vickery began plotting a slave rebellion. His plan called for killing the slave owners, stealing what weapons they could find, setting fire to Quitman, going to Madison, Florida, burning the town, getting help from Union troops from the Gulf Coast, and then returning to Quitman. On the evening before the rebellion, a slave was arrested for theft and interrogated. Vickery was soon arrested as well. Vickery and four slave suspects were given a military trial by the local militia. Two Confederate deserters from Florida were also believed to have been involved, but were not caught by the time of the trial.
On August 23, 1864, at 6:00 p.m., Vickery, and slaves Sam, Nelson, and George were publicly hanged in Quitman. The court could not reach a decision on the guilt of Warren, a slave held by Buford Elliot.
After the war, many freedmen worked as sharecroppers or tenant farmers. Following the war and the Reconstruction era, Brooks County was one of the areas with a high rate of racial violence by whites against blacks. Its 20 deaths make it the county in Georgia that had the third-highest number of lynchings from 1870 to 1950. (From 1880 to 1930, Georgia had the highest number of such extrajudicial murders in the country).
In May 1918, at least 13 negros were killed during a white manhunt and rampage after Sidney Johnson killed an abusive white planter.[8] Johnson had been forced to work for the man under the state's abusive convict lease system. Among those killed were Hayes Turner, and the next day his wife Mary Turner, who was eight months pregnant. They were the parents of two children. Mary Turner had condemned the mob's killing of her husband. She was abducted by the mob in Brooks County and brutally murdered at Folsom's Bridge on the Little River on the Lowndes County side; her unborn child was cut from her body and killed separately. During the next two weeks, at least another eleven blacks were killed by the mob. Johnson was killed in a shootout with police. As many as 500 negros fled Lowndes and Brooks counties to escape future violence.
Mary Turner's lynching drew widespread condemnation nationally. It was a catalyst for the Anti-Lynching Crusaders campaign for the 1922 Dyer Bill, sponsored by Leonidas Dyer of St. Louis. It proposed to make lynching a federal crime, as southern states essentially never prosecuted the crimes. The Solid South Democratic block of white senators consistently defeated such legislation, aided by having disenfranchised most black voters in the South. In 2010, a state historical marker, encaptioned "Mary Turner and the Lynching Rampage," was installed at Folsom's Bridge in Lowndes County to commemorate these atrocities.
In the 21st century, Brooks County is classified as being in the Plantation Trace tourist region.