History of Fort Duffield
Fort Duffield stands as Kentucky’s largest and best‑preserved Civil War earthen fortification.
Built in the opening months of the war, the fort guarded the vital transportation routes that
connected Louisville to the Union armies pushing south. Rising nearly 300 feet above the
City of West Point, the fort commanded sweeping views of the Salt and Ohio Rivers and the
roads that threaded through the valley below.
supply routes vital to holding Kentucky in the Union.
In the opening months of the Civil War, Kentucky’s loyalties were uncertain, and Union commanders
feared a Confederate advance toward Louisville. West Point became a critical junction where newly
raised volunteer regiments—still learning their duties—were expected to stabilize a region on edge.
The 9th Michigan arrived in this atmosphere of uncertainty, tasked with protecting a community that
felt vulnerable and exposed.
Leadership Under Strain: Lt. Col. Daniel M. Fox and the Winter of Fear, 1861–62
West Point entered the winter of 1861 already uneasy. Rumors of Confederate General Simon Bolivar
Buckner’s advance circulated almost daily, and civilians believed the town could be attacked at any
moment. Scouts reported enemy patrols near the Louisville & Nashville Railroad, and suspected
secessionists were detained on the roads. The 9th Michigan arrived in the middle of this tension,
tasked with protecting a community that felt exposed and undefended.
A Family Caught Between Two Armies
Lt. Col. Daniel M. Fox, second‑in‑command of the regiment, had brought his wife and children with
him to Kentucky. They lived in a rented house near the river, close enough to hear the constant
movement of troops and the hammering of axes on Muldraugh’s Hill as Fort Duffield took shape above
the town. At first, Fox believed the posting would be temporary and relatively safe. But as reports
of Confederate activity intensified, he became increasingly anxious.
Officers later recalled Fox saying he did not want his family “between two armies.” With West Point
sitting at the junction of the Ohio and Salt Rivers—a natural invasion route—his fear was not
unreasonable. By late December 1861, Fox made the difficult decision to send his family north,
first to Louisville and then back to Michigan. The emotional strain of that choice stayed with him.
Administrative Disorder and Mounting Pressure
The 9th Michigan was a new volunteer regiment, and its administrative foundation was shaky. Supply
records were incomplete, Quartermaster returns were missing, and officers were still learning their
duties. Clothing, tools, tents, and weapons had been issued without proper documentation. Into this
confusion stepped Adjutant Henry Martyn Duffield, only twenty years old, who suddenly found himself
responsible for untangling the regiment’s paperwork.
Duffield’s surviving notes describe a regiment struggling to keep pace with the demands of fort
construction while simultaneously trying to correct months of neglected administrative work.
Officers were overwhelmed, and the pressure of building Fort Duffield only intensified the strain.
The Attempted Resignation
It was in this environment—fear for his family, illness, exhaustion, and administrative chaos—that
Fox attempted to resign. But Army regulations were clear: no officer could resign while still
responsible for unaccounted government property. Fox still held equipment that had never been
properly recorded, and his resignation was denied.
Duffield’s memorandum captures the moment with stark clarity:
“Col. Fox having some government property in his possession for which he has not accounted, I had
some difficulty in procuring the acceptance of his resignation…”
This small administrative fragment reveals the human reality behind the regiment’s early struggles.
Fox was not a coward; he was a sick, stressed officer trying to protect his family while navigating
the bureaucratic demands of a regiment still finding its footing.
Why Fox’s Story Matters to Fort Duffield
Fox’s experience is a window into the emotional and logistical landscape of Fort Duffield’s
construction. His story illustrates the fear that permeated West Point, the instability of early
leadership, the administrative disorder of new volunteer regiments, and the human cost of building
a defensive fort under threat. It also highlights the burden placed on young officers like Henry
Duffield, who worked to stabilize the regiment during a period of intense pressure.
Aftermath
Fox’s family reached safety. Fox himself continued to struggle with illness and administrative
burdens. He was later captured at Murfreesboro in July 1862, exchanged, and eventually left the
regiment permanently. But the memorandum he left behind—and the story surrounding it—remains one of
the clearest glimpses into the early months of Fort Duffield’s history.
Building the Fort
Construction of Fort Duffield began in November 1861. Regiments from Indiana, Ohio, Wisconsin,
and Michigan passed through West Point during this period, but the 9th Michigan Volunteer
Infantry is credited with building the fort itself. Soldiers cleared Pearman Hill, cut timber,
shaped the earthworks, and created a defensive line that followed the contours of the ridge.
The fort’s angled walls form a pattern similar to a cremaillere line, a design that created
multiple salients and defensive fronts. Captain Deland of the 9th Michigan later noted that the
fort’s angles provided “18 points or fronts of defense to the enemy.” Many of these features
remain visible today.
Before leaving West Point, the 9th Michigan also constructed a wooden bridge across the Salt River,
improving the Union’s ability to move men and supplies southward.
Life Inside the Fort
During the winter of 1861–62, Fort Duffield housed a mix of tents and hastily built log structures.
Soldiers lived in wedge tents, Sibley tents, and several gable‑roofed huts near the flagpole.
Open areas inside the fort served as drill space, supply yards, and gathering points for troops
preparing to move south.
Daily life was shaped by cold weather, muddy roads, sickness, and the constant movement of
regiments through West Point. Letters from soldiers describe the challenges of camp life, the
demanding labor of fort construction, and the anticipation of marching into the Western Theater.
The Fort’s Role in the War
Fort Duffield was built to protect the junction of the Salt and Ohio Rivers and to secure the
supply routes feeding the Union Army. From this ridge, soldiers could observe river traffic,
monitor roads leading south, and guard the approaches to Louisville.
Though never attacked, the fort’s commanding height made it one of the most defensible positions
along the Ohio River corridor. Its presence helped stabilize the region during the critical first
year of the war.
After the War Moved South
Following the Battle of Perryville in October 1862, the main fighting shifted deeper into
Tennessee. The artillery and munitions at Fort Duffield were ordered back to Louisville in
December 1862, and the fort was largely abandoned. Aside from occasional guerrilla activity,
the site remained undisturbed for decades.
Because the fort was never modernized or rebuilt, its original Civil War earthworks survived
remarkably intact.
Rediscovery and Preservation
In the 20th century, the ridge above West Point drew renewed interest from historians, veterans’
groups, and local residents. The land eventually became part of the Fort Knox military reservation,
which helped protect the earthworks from development.
In 1978, the property was transferred to the City of West Point through the National Park Service’s
Lands to Parks Program. Volunteers, civic organizations, and the Fort Duffield Heritage
Foundation have since worked to preserve the site, restore trails, and interpret the fort’s history
for the public.
trails, and interpretive stations offer visitors a rare opportunity to explore an original
Civil War fortification in a natural setting.
Explore More
- Historic West Point
- Construction of the Fort
- Garrison Life at Fort Duffield
- Walking Tour of the Fort
- Primary Sources Archive
Fort Duffield Heritage Foundation
City of West Point, Kentucky