Captain Barnett having resigned, Davie was promoted to captain, and shortly thereafter was made major. On June 20th of that year Davie took part in the battle of Stono, near Charleston. In this battle the North Carolina brigade was commanded by General Jethro Sumner. In a cavalry charge on that day Davie was wounded and fell from his horse, but retained hold of the bridle. The cavalry, dispirited by his fall, were in full retreat when a private in another company, whose horse had been shot under him and was carrying off his saddle, saw Major Davie standing by his horse unable to mount him, his thigh being disabled by his wound. Though the enemy were in a few yards, this man deliberately placed him on his horse and led him from the field. His deliverer then disappeared and resumed his place in the ranks, and Davie could find no trace of him. The wound was a severe one and kept Davie long in the hospital at Charleston, rendering him incapable of further service that year. At the siege of Ninety-Six, two years later, when Davie was present as Commissary-General of the Southern Army, on the morning of the attack a stranger came to his tent and introduced himself as the man who had saved his life at Stono. He promised to visit him again, but when the troops were recalled from the fruitless attempt to storm the fort the body of the gallant unknown was found among the dead. On his return from the Charleston hospital in September, 1779, Davie being unfit for service, applied for and received his County Court license and was sent by the Governor to attend the courts on the Holston river, then in North Carolina, that he might ascertain public sentiment in that section. In the spring of 1780 he received his Superior Court license. About the same time he obtained authority from the Legislature of North Carolina to raise a troop of cavalry and two companies of mounted infantry. The authority was all that the State could give, its funds being too low to provide the means. Major Davie, with a patriotism worthy of perpetual remembrance, disposed of the estate inherited from his uncle and thus raised the funds to equip his command.