Glen Leven was located between the lines of occupation and, as a result, was subject to raiding and looting. In December 1864, the home became the headquarters for Lt. General Stephen D. Lee of the Confederacy. When the Battle of Nashville began on December 15, Glen Leven stood behind the Confederate line, located roughly where Thompson Lane is today. That day, the troops were pushed back south of the house. Some of the retreating Confederate soldiers stopped to drink water from the Thompson family’s cistern and trampled Mary Thompson’s decorative flower garden in the process. After the battle, the home became a field hospital, treating both Union and Confederate soldiers. At least 400 soldiers were treated at Glen Leven Farm before being transferred to larger hospitals. Ninety-one soldiers, including 32 USCT, died in the house and on the grounds and were buried on the property. These men were later reinterred in the National Cemetery in Nashville. Today, Glen Leven Farm remains the largest intact piece of the Battle of Nashville battlefield.