Nathaniel McClean Gwynne

At Fifteen, He Saved the Flag and Lost an Arm

Nathaniel McLean Gwynne was an American Civil War soldier whose extraordinary courage at the Battle of the Crater earned him the Medal of Honor, the United States' highest military decoration for valor. On July 30, 1864, at just fifteen years of age, Gwynne joined a dangerous Union assault against Confederate defenses at Petersburg, Virginia, despite being warned that he had not yet been formally mustered into military service. During the fighting, he recovered his regiment's fallen colors and suffered devastating wounds that resulted in the amputation of his left arm. His remarkable actions made him one of the youngest soldiers to receive the Medal of Honor and established an enduring example of youthful courage during the American Civil War.

Born on July 5, 1849, in Urbana, Champaign County, Ohio, Nathaniel McLean Gwynne was the son of David Gwynne and Sarah F. McLean. He grew up during a period of increasing national division over slavery and the future of the United States. When the Civil War began in April 1861, Gwynne was only eleven years old. The conflict continued throughout his early adolescence, and by 1864, as Union armies prepared increasingly determined campaigns against Confederate forces, he was eager to enter military service.

Gwynne's youth initially prevented him from joining the Army through ordinary enlistment procedures. Historical accounts describe his attempts to enter military service despite being younger than the usual accepted enlistment age. He eventually became associated with Company H of the 13th Ohio Volunteer Cavalry, a Union regiment organized in May 1864. His Medal of Honor record identifies Fairmount, Missouri, as his place of entry into military service.

Although designated as a cavalry regiment, the 13th Ohio operated primarily as dismounted infantry during its early service. The regiment was attached to the Army of the Potomac's Ninth Corps and participated in operations against Confederate positions around Petersburg, Virginia. Its soldiers faced the demanding conditions of siege warfare, including prolonged exposure to artillery bombardment, entrenched defensive positions, and repeated infantry assaults.

By the summer of 1864, Petersburg had become a major objective of Union forces commanded by Lieutenant General Ulysses S. Grant. The city served as an important railroad and supply center supporting Confederate General Robert E. Lee's army and the Confederate capital at Richmond. Union troops had failed to capture Petersburg through direct assaults in June, leading to an extended siege involving elaborate trenches, artillery positions, and fortified defensive lines.

During this period, soldiers of the 48th Pennsylvania Infantry developed an ambitious plan to break through the Confederate defenses. Experienced miners serving in the regiment excavated a tunnel beneath a Confederate strongpoint known as Elliott's Salient. Their objective was to place a large quantity of explosives beneath the fortification, destroy part of the defensive line, and create an opening through which Union troops could advance.

The resulting operation became known as the Battle of the Crater. Shortly before dawn on July 30, 1864, Union forces prepared to attack following the planned explosion. Thousands of soldiers assembled for an assault intended to exploit the destruction of the Confederate earthworks and threaten the defenses protecting Petersburg.

Gwynne was present with Company H of the 13th Ohio Cavalry as the troops prepared to advance. Although he had not yet completed the formal military mustering process, he remained determined to participate in the attack. Before the charge began, an officer warned him not to enter the fighting because his enlistment had not been formally completed.

The warning did not persuade the young soldier to remain behind. Gwynne protested and joined the advancing troops, exposing himself to the dangers of an operation that would become one of the most destructive Union attacks of the Petersburg Campaign. His decision to accompany the assault despite the warning became a defining element of the conduct later recognized by the Medal of Honor.

At approximately 4:44 a.m., the Union mine exploded beneath the Confederate position, destroying part of the fortifications and creating an enormous crater. Federal soldiers advanced toward the breach, but the operation quickly descended into confusion. Many troops entered the crater itself rather than moving around it toward their assigned objectives. Confederate forces reorganized, brought artillery and infantry fire against the attackers, and launched counterattacks to regain control of the position.

The battlefield became exceptionally dangerous as Union troops struggled to maneuver through the devastated earthworks. Confederate soldiers fired into the crowded assault formations, while Union units attempted to advance, maintain their organization, or withdraw from increasingly exposed positions. The initial opportunity created by the explosion was gradually lost as Confederate resistance intensified.

During this fighting, Gwynne performed the action that would distinguish his military service. A later congressional account described how his regiment's colors had fallen into Confederate hands during the engagement. Determined to recover them, the young soldier advanced toward the enemy position and succeeded in retrieving the flag.

As Gwynne attempted to return to the Union lines with the colors, he was struck by enemy fire. His left arm sustained a devastating injury, while another projectile wounded his knee. Despite his injuries, he continued carrying the flag back toward his comrades.

The wounds were severe. His left arm had been so badly damaged that it required amputation soon afterward. The injury to his knee also had lasting consequences, causing persistent pain and physical difficulties throughout his later life. The fifteen-year-old soldier survived the battle, but the wounds permanently altered his future.

The official Medal of Honor citation recognized Gwynne's extraordinary participation in the charge despite his youth and incomplete mustering. It specifically recorded the destruction of his left arm by a shell and the subsequent amputation. His conduct stood out amid a battle remembered for severe casualties, failed coordination, and the suffering of the soldiers who fought within and around the crater.

The Battle of the Crater ultimately ended in a Confederate victory. Union forces failed to exploit the breach created by the explosion, and Confederate counterattacks restored control of the threatened positions. The fighting also witnessed the killing of Black Union soldiers by Confederate troops, including men who had surrendered or were attempting to surrender. The unsuccessful assault became one of the most tragic episodes of the Petersburg Campaign.

Although the Union attack failed, Gwynne's individual courage received national recognition. On January 27, 1865, he was awarded the Medal of Honor for his extraordinary actions at Petersburg. The decoration acknowledged his determination to participate in the assault despite being only fifteen years old and the severe wounds he suffered during the engagement.

The Medal of Honor had been established during the American Civil War to recognize exceptional military conduct. Congress authorized the Army decoration in 1862, creating a national means of honoring soldiers whose bravery distinguished them in battle. Gwynne's award belonged to the earliest period in the history of the decoration, when acts of battlefield courage helped establish the traditions associated with America's highest military honor.

His recognition carried particular significance because of his age. While thousands of young men served in Union and Confederate armies, Gwynne was unusually young when he performed his Medal of Honor action. His participation in the Battle of the Crater demonstrated the determination of a teenager who entered one of the Civil War's most dangerous engagements and survived with permanent disabilities.

Following the war, Gwynne eventually settled in Missouri. Despite the lasting effects of his injuries, he established a civilian career and became involved in law and real estate activities. His postwar life brought him to Kansas City, where he developed connections within the community and participated in public affairs.

Gwynne's civilian achievements included election to the Missouri House of Representatives in 1878, representing Jackson County as a Democrat. His election marked an important transition from military service to public responsibility. Still a young man, he had moved from the hardships of Civil War combat into the political life of the state where he had made his home.

He also remained associated with the community of Union veterans through the Grand Army of the Republic, an organization devoted to preserving the memory of the Civil War and supporting former Union soldiers. His involvement reflected the continuing importance of veteran associations in the decades following the conflict.

Although Gwynne achieved public recognition and professional success, the injuries he sustained at Petersburg continued to affect his health. His amputated arm created a permanent physical disability, while the wound to his knee remained a source of serious suffering. Those who knew him in later years described the prolonged consequences of his battlefield injuries and the difficulties he experienced while attempting to maintain his civilian responsibilities.

Nathaniel McLean Gwynne died on January 6, 1883, in Kansas City, Missouri, at the age of thirty-three. His death brought an early end to a life marked by extraordinary military courage and subsequent public service. He was survived by his wife, Nira, and their young son.

Following his death, his family's circumstances attracted attention in the United States Congress. In February 1886, lawmakers discussed legislation concerning a pension for his widow. During the proceedings, Gwynne's wartime injuries and exceptional conduct at Petersburg were recalled, demonstrating that his military sacrifice continued to receive recognition beyond his lifetime.

Gwynne was buried in Union Cemetery in Kansas City, Missouri. His grave remains associated with his distinguished military service, and his memory has been preserved through historical accounts and commemorations of Medal of Honor recipients.

Nathaniel McLean Gwynne's legacy extends beyond his remarkable youth at the Battle of the Crater. At fifteen, he entered a dangerous Union assault despite being advised to remain behind. During the engagement, he recovered his regiment's colors and suffered injuries that permanently changed his life. His Medal of Honor recognized the courage he demonstrated during those extraordinary circumstances.

His subsequent career in Missouri, including service in the state legislature, added another important dimension to his life. From a young Ohio-born soldier on the battlefields of Virginia to an elected representative in Missouri, Gwynne's story reflects military sacrifice, personal endurance, and public service. Although he died at only thirty-three years of age, his actions on July 30, 1864, remain an enduring chapter in the history of the American Civil War and the Medal of Honor.