Carlisle Barracks became the center of intense military activity with outbreak of the Whiskey Rebellion in 1794. This crisis was posed by farmers who refused to pay taxes on commercial whiskey they distilled from their corn crops. They found out that corn processed as alcohol was easier to be transported east over the allegiances and more profitable than com was as grain. The protesters used violence and intimidation to prevent the officials from collecting the taxes. The whiskey tax was repealed when Thomas Jefferson came to power in 1801.
The School of Calvary Practice was established at the Barracks in 1838. It was the army's small elite mounted force. The forerunner of the armor school is now at Fort Benning, Georgia. Captain E. V. Summer found most of the buildings of the barracks in disrepair and the horses in short supply. To overcome these problems he drilled his recruits double time on foot to stimulate the trotting of the missing horses. Horse-Drawn Light Artillery also established it's school at the Barracks. Captain Samuel Ringgold arrived to begging training recruits and testing equipment for the flying artillery in 1839.