eighteen miles through mountain wilderness to Jackson's Mill, where he was welcomed by his uncles and he remained there for the following seven years. Cummins Jackson was strict with Thomas, who looked up to Cummins as a schoolteacher. Jackson helped around the farm, tending sheep with the assistance of a sheepdog, driving teams of oxen and helping harvest wheat and corn. Formal education was not easily obtained, but he attended school when and where he could. Much of Jackson's education was self-taught. He once made a deal with one of his uncle's slaves to provide him with pine knots in exchange for reading lessons; Thomas would stay up at night reading borrowed books by the light of those burning pine knots. Virginia law forbade teaching a slave, free black or mulatto to read or write; nevertheless, Jackson secretly taught the slave, as he had promised. Once literate, the young slave fled to Canada via the Underground Railroad. In his later years at Jackson's Mill, Thomas served as a schoolteacher. Brother against sister The Civil War has sometimes been referred to as a war of "brother against brother," but in the case of the Jackson family, it was brother against sister. Laura Jackson Arnold was close to her brother Thomas until the Civil War period. As the war loomed, she became a staunch Unionist in a somewhat divided Harrison County. She was so strident in her beliefs that she expressed mixed feelings upon hearing of Thomas's death. One Union officer said that she seemed depressed at hearing the news, but her Unionism was stronger than her family bonds. In a letter, he wrote that Laura had said she "would rather know that he was dead than to have him a leader in the rebel army". Her Union sentiment also estranged her later from her husband, Jonathan Arnold. Early military career West Point In 1842, Jackson was accepted to the United States Military Academy at West Point, New York. Because of his inadequate schooling, he had difficulty with the entrance examinations and began his studies at the bottom of his class. Displaying a dogged determination that was to characterize his life, he became one of the hardest working cadets in the academy, and moved steadily up the academic rankings. Jackson graduated 17th out of 59 students in the Class of 1846. It was said by his peers that if he had stayed