In 1863, Nadine started a regular diary that included her opinions on her husband's fellow officers and commentary on battles that she participated in, including Chickamauga. During the battle, she stayed with the brigade and division wagons, which were parked just on the western edge of the battlefield, and she climbed up onto the eastern hills of Missionary Ridge to observe events during the Battle of Missionary Ridge. She left detailed accounts of both battles, in effect being the only Union female diarist of those battles.