In July 1877, Flipper reported to
Fort Sill in the
Indian Territory, for assignment with the 10th Cavalry. But the 10th was not at Fort Sill, they were at
Fort Concho. He was not assigned to a cavalry troop, but given work assignments including engineering a ditch to drain a swamp that was
malaria-infested. He supervised the construction of roads and
telegraph lines. Finally, Flipper received orders to report to
Fort Concho in West Texas in October 1877 and was assigned to 'A' Troop. He was the first nonwhite officer to lead buffalo soldiers of the 10th Cavalry. Captain
Nicholas M. Nolan, the commander of 'A' troop, was the officer assigned to teach him about being a cavalry officer. Nolan was censured by several white officers for allowing Flipper into his quarters for dinner, where his daughter Kate was present. Nolan defended his action by stating that Flipper was an "officer and a gentleman" just like any other officer present. In August 1878, Captain Nolan married his second wife, Anne Eleanor Dwyer, in San Antonio, Texas. They had one child, a girl. Anne's sister, Miss Mollie Dwyer, arrived shortly after Troop A moved to Fort Elliott in Texas in early 1879. Mollie Dwyer and Flipper became friends and often went riding together. Nolan was the
de facto commander of Fort Elliott and he made Flipper his adjutant. Flipper received high marks from his commander. However, rumors and letters hinted at improprieties against Flipper, an African American and Dwyer, a Caucasian. It was the beginning of a smear campaign. During the next many months, he sent and received letters from Mollie. In the fall of 1879, a
Federal Marshal named Norton, armed with blank warrants, began a quarrel with a county judge. Other county officials stepped in to defend the judge and Norton arrested all of them with his armed men. Norton took the county men to Fort Elliott to be placed in the guardhouse. Nolan was required by law to accept the prisoners, and Nolan apparently talked with the
Wheeler County Judge. The
telegraph lines then were suddenly cut and Nolan decided to act. Flipper gathered the prisoners in the middle of the night, and with two soldiers, set off for another fort in Indian Territory. Norton captured the entire party and arrested Flipper and one of his soldiers. The other soldier ran back to the fort to report what had happened. Norton then set off for Dallas, Texas. Nolan mounted a detail of men and took off in pursuit. He caught up to the party and made it clearly known that no prisoners would be shot while trying to escape because the federal marshal and his prisoners were now under military escort. A federal judge dismissed the warrants and Norton filed federal charges of "interfering with the process of the law" against the two officers. The two officers were quickly tried and found guilty. Both were fined $1,000, which was an enormous fine for its time (). Norton was satisfied, then left. The federal judge then suspended payment and dismissed the two military officers. Army relations in Wheeler County improved tremendously. Nolan had Flipper under his wing for the first part of the
Apache Wars in early 1879 until he was reassigned to G Troop. Until November 1879, during his captain's four-month leave, Flipper commanded this unit by himself and received a well done. In May 1880, Flipper and Nolan reunited during the
Victorio Campaign. It was the last time the two met. Throughout this period, his military career was encumbered by
racism in the military, though he did have the support of some officers, such as Nolan, and many of the white civilians he encountered who were impressed by his competency. In the later part of 1880, Flipper was transferred to
Fort Davis in West Texas and assigned as the post
quartermaster and
commissary officer. ==End of military career==