Since the early 1900s, two 8-inch Rodman cannons have stood as silent sentinels outside the Henry County Courthouse in Martinsville, Virginia. These impressive artillery pieces are more than just historical decorations—they are symbols of Civil War-era military innovation and local heritage.

The Rodman cannon, named after its inventor, Thomas J. Rodman, was a significant advancement in artillery design during the American Civil War. Unlike traditional cast iron cannons, which were prone to cracking under the pressure of repeated firing, the Rodman cannon was designed for superior strength and durability. It was manufactured using an innovative cooling technique in which water was circulated inside the cannon during the casting process. This method, known as the Rodman process, resulted in a more uniform and resilient structure, reducing the likelihood of fractures and extending the cannon’s lifespan.
Due to their reliability, Rodman cannons were widely used by both Union and Confederate forces during the Civil War. Their presence on battlefields and fortifications played a crucial role in shaping military strategy, and many examples of these cannons still exist today at museums and historical sites across the United States.
The Rodman cannons at the Henry County Courthouse have their own fascinating journey. Originally stationed at Fort McHenry in Maryland—a site famous for its role in the War of 1812 and the inspiration for “The Star-Spangled Banner”—these cannons were eventually relocated to Martinsville. Their transfer was made possible by Claude Swanson, a Pittsylvania County native who held several prominent positions in state and national government, including Governor of Virginia and Secretary of the Navy.
The transportation of the cannons to Martinsville was a remarkable feat in itself. They were shipped by train before being hauled to the courthouse by a team of horses and donkeys. Over time, a local legend emerged that elephants from a traveling circus were used to pull the massive cannons into place. While this story has captured the imagination of many, eyewitness accounts confirm that no elephants were involved in the move.
Today, the Rodman cannons stand as enduring reminders of the region’s historical ties to the Civil War and its military past. Their presence at the courthouse not only honors the technological advancements of the 19th century but also reflects the efforts of those who sought to preserve and commemorate that history. Whether visitors come to admire their craftsmanship or to learn about their storied past, these cannons remain an important link to America’s rich and complex history.
Jarred Marlowe is a local resident and historian. He is a member of the Col. George Waller Chapter of the Sons of the American Revolution, the Blue & Gray Education Society, and the committee chair for the Martinsville-Henry County 250 Committee. He may be reached at marloweja15@gmail.comÂ