The Ironclads and Monitors of Carondelet (St. Louis), Missouri
Featuring the 1862 Music of the Navy Ballad, "Oh Give Us a Navy of Iron !"
By Scott K. Williams

This lithograph published by Currier & Ives, New York depicts the bombardment of the Confederate fortifications on Island Number Ten (April 7, 1862) by Federal gunboats and mortar boats. Ships seen include (from left to right): Mound City, Louisville, Pittsburg, Carondelet, Flagship Benton, Cincinnati, Saint Louis and Conestoga. Mortar boats are firing from along the river bank. Image courtesy of the U.S. Navy.
Many ironclad ships of the Union's brown fleet navy were built
by James B. Eads & Co. at Carondelet, Missouri (a city now incorporated within the city limits of St. Louis.) The
construction was primarily at Eads' Union Marine Works (also known as Union
Iron-Works or Marine Railway). This facility, located at the confluence
of the River des Peres and the Mississippi river was formerly known as
the Carondelet Marine Railway Company, situated at the terminus of Marceau
Street. It consisted of a series of tracks and cranes that could transport
ships in or out of the river using a railway car. The railway car
could move a short distance into the water, up a shallow slope then up
into one of the handful of sheds where 800 artisans, laborers and shipwrights
were employed . It was built in the 1850's by Primus Emerson and
leased to James Eads. Also in support of the ship yard operations,
Eads had a rolling mill, five sawmills, and two foundaries.
![]() |
Eads' shipyard at Carondelet, Missouri constructing federal gunboats.
Source: Harper's Weekly, Oct 5, 1861. Sketch by Alexander Simplot.
Under contract with the U.S. government, Eads was to build seven
identical "city-class" * ironclad ships by October 5 1861. A penalty of
two hundred dollars per day for each boat if it was not completed and delivered
to Cairo by that date. To assist in this endeavor, Eads had three
ships (Cairo, Mound City, and Cincinnati) under his direction,
constructed by Hambleton & Collier Co. in Mound City, Illinois.
Of the seven, the following were built at Carondelet: "St. Louis" ** ,
"Carondelet", "Louisville" and the "Pittsburgh". Even with the help of
the Mound City facility, Eads lost considerable amounts of money as a result
of the Oct. 5th 1861 deadline. The first iron clad, the "St. Louis"
**, completed was launched 12 Oct. 1861 from Carondelet, Missouri.
Even though the ships were late, all seven of the ships were "finished
and ready for armament within one hundred days after the signing of the
contract", which had been awarded on August 7, 1861 . NOTES: * "City Class"
are those ironclads named after U.S. Cities. **Note: One exception ,the
"St. Louis" was later renamed the "Baron De Kalb" as there was another
ship bearing the name "St. Louis".

The ironclad gunboat, U.S.S. St. Louis (later renamed the U.S.S. Baron De Kalb). She was sunk July 13, 1863 by a Confederate torpedo (mine) in the Yazoo River of Mississippi. Photo credit: U.S. Naval Archives/
The above "city-class" gunboats were designed by Samuel Pook. In
general these gunboats "were about one hundred and seventy-five feet in
length, fifty-one feet beam, six feet depth of hold in the clear, and when
ready for service drew about five feet of water, and made nine miles per
hour. They had five five-flued boilers twenty-four feet long and thirty-six
inches in diameter, with seven feet stroke. The shaft was made of wrought
iron, worked by both engines. A casemate enclosed the wheel, which was
placed in a recess near the stern of the vessel. The hulls were made of
wood, the bottoms of five-inch plank, and the sides of four-inch, and the
vessel was sealed all over with two-inch plank. The sides projected from
the bottom of the boat to the water-line at an angle of about forty-five
degrees, and from the water-line the sides fell back at about the same
angle to form a casemate about twelve feet high. This slanting casemate
extended across the hull near the bow and stern, forming a quadrilateral
gun-deck. The casemates were made of three-inch plank, and well fastened.
The knuckles of the main deck, at the base of the casemate, were made of
solid timber, about four feet in thickness. The boats were calked all over,
both inside and outside, and sheathed on the outside with two-and-a-half-inch
iron, thirteen inches wide, and riveted on the edges to make a more perfect
joint. The plating covered the casemates above and below the water-line.
The boats were bulkheaded into compartments to prevent their sinking in
case of damage to any particular part. The gun-deck was about one foot
above water, and the vessels were pierced to carry thirteen heavy guns.
Three 9- or 10-inch guns were placed in the bow, four smaller one on each
side, and two smaller ones astern." [History of Saint Louis City
and County, by J. Thomas Scharf; Louis H. Everts & Co.; 1883].

Four "city class" ironclads being constructed simultaneously at the Carondelet
shipyard. Three are visible in the above image (two in the front are laying bow
to bow.) (photo credit: U.S. Naval Historical Center)

Two "city-class" ironclads, under construction at Carondelet. Laying bow to bow with the five boilers of the nearest ship exposed. (photo credit: U.S. Naval Historical Center)
Others ships Eads built at the Carondelet shipyard were
"Fort Henry", "Essex" (ironclad), Neosho, (river monitor), "Osage"
(river monitor, identical twin of the Neosho), "Choctaw" (ironclad
ram), "Winnebago" (double turreted river monitor), "Milwaukee" (monitor),
and the Chickasaw" (river monitor) . The last three ships were propeller
driven (as opposed to having paddle wheels). In addition, two light-draft
ironclad monitors (the "Etlah" and "Shiloh") of the Ericsson design were
by another company, McCord & Steel at their St. Louis National Iron-Works.
Another ship the "Benton", was formerly a U.S. snag boat. It was bought
and converted Eads to be his "submarine wrecking-boat, "No. 7".
In 1861, Eads sold the boat back to the Federal government for $ 26,000.
It was converted into a ironclad gunboat by Morse & Daggett of the
St. Louis Dry Dock Company, under the superintendence of James Eads. It
is reported to have been the "most powerful ironclad afloat."

Ironclad mortar boats
being constructed at Carondelet.
These
non-propelled armored floating barges housed large mortars that were used
against the Confederates at Missouri's Island No. 10 on the Mississippi . Thirty-eight of these
mortar boats were built at Eads' naval works.
Each armored mortar boat would carry one 13 inch mortar. Because of the extreme
noise, the crew would load the gun, exit thru an escape hatch, and fire the gun
by pulling a lanyard. The shells would travel a distance of two miles before
coming straight down on the Confederate positions.
![]() |
The monitor as invented by John Eriksson. The U.S.S. Etlah and U.S. S. Shiloh, built in St. Louis were of this design. Technically this was not an ironclad (wood clad in iron), but a ship made entirely of iron. Unfortunately the Etlah and Shiloh were
completed too late for service during the war.

Building of ironclad mortar boats at
Eads' Carondelet Iron Works. As depicted in Frank Leslie's Magazine.

Inside the gun deck of a "city class" ironclad. From Harper's
Weekly, courtesy of U.S. Naval Historical Center.
U.S.S. Baron De Kalb (formerly the St.
Louis) launched as St. Louis 12 October 1861. Saw action at Ft. Henry,
Ft. Donellson, Ft. Pillow, Duvall's Bluff, Drumgould's Bluff , Arkansas
Post, White River Expedition, Fort Pemberton , Haines' Bluff Yazoo Pass
Expedition. Sunk 13 July 1863 by a Confederate torpedo (mine) in the Yazoo
River, Mississippi. (photograph displayed above)

Drawing of the U.S.S.Benton, by R.G. Skerrett. Courtesy of the U.S. Naval Historical Center.
U.S.S. Benton: Originally a U.S. snag-boat,
she was altered and plated as an iron-clad. She was considered to be the
most powerful of all the union vessel in the western gunboat flotilla.
"Was one hundred and eighty-six feet long on deck, and seventy-five feet
wide at the beam; her hold was eight and one-half feet in depth, and she
drew about five feet of water. She had a double hull, with the wheels working
in the recess near the stern. Her hull was of four-inch plank and timbers
eight by ten inches, and was divided by five fore-and-aft bulkheads and
thirteen cross bulkheads, making forty-five water tight compartments. The
deck-frame beams were ten inches square, and the main deck was planked
with four-and-one-half inch plank. The forward casemate ran down to the
two-feet water-line, and was of twenty-four-inch iron plating. The entire
boat was sealed with three and four-inch oak plank, calked, and made perfectly
tight. Casemates extended around the whole vessel, and was made of twelve-inch
timber. At the knuckle on the main deck the timber was from three to four
feet in thickness." Her eighteen guns ranged anywhere from 32-pounders
to 42-pounders in caliber. "There were also two nine-inch Dahlgren guns
in the forward part of the boat and two smaller ones at the stern."
"The machinery, boilers, ect. were all under the deck. The cylinders were
twenty inches in diameter, double-flued. The wheels were twenty feet in
diameter, with nine-and-one-half feet bucket, the wheel-house being protected
by timber from six to eight inches in thickness and sheathed with heavy
iron. The pilot-house was protected by twelve-inch oak timber placed at
an angle of about thirty degrees with the upper deck, and was conical in
shape, and sheathed in heavy iron." [History of Saint Louis
City and County, by J. Thomas Scharf; Louis H. Everts & Co.; 1883].Commanded
by Capt. John Scott. Served as Capt. Andrew Hull Foote's flagship
during the March 1862 assault on Island No. 10. Became Capt. Charles H.
Davis' flagship during the battles of Plum Point and Memphis. Engaged in
a fight against the Confederate ironclad, the C.S.S. Arkansas at the mouth
of the Yazoo river. Took part on the failed July 22, 1862 mission to destroy
the C.S.S. Arkansas at Vicksburg. August 1862 Expedition to Milliken's
Bend. Served as Flagship in sortie against rebel batteries at Hayne's Bluff.
On 29 April 1863, took on Confederate batteries at Grand Gulf where it
received severe damage with numerous casualties. Red River Expedition.
U.S.S. Carondelet: She was the first
ship to run past the Confederate batteries on Island No. 10, as well as being a part of
the naval force that forced the surrender of Ft. Henry; played the leading
role in the naval attack on Ft. Donelson, where it suffered four killed,
30 wounded on board. Sent to Cairo, Illinois for repair of damages. March
1862 operation against Island No. 10 and New Madrid. Sunk the Confederate
ship, "General Sumter" at the Battle of Plum Point. Engaged and destroyed
the Confederate fleet at the Battle of Memphis. On July 15, 1862, she was
run aground by Commander Henry Walke to avoid sinking after an attack
by the Confederate ironclad, "C.S.S. Arkansas". The Arkansas inflicted a
devastating broadside that destroyed water pipes and steam guages as well as
cutting away the wheel ropes. During this engagement she received four killed,
16 wounded, and 10 missing. By March 1863, the Carondelet was repaired
and back to duty for Grant's expedition up the Yazoo to Steele's Bayou.
Expedition to Hayne's Bluff. On 29 April 1863, took on Confederate
batteries at Grand Gulf . Involved in operations on the Red River. (Image of
the U.S.S. Carondelet, depicts the common use of an awning over ironclads in
order to reduce the searing heat from the sun. Photo credit: U.S. Naval
Historical Center)

U.S.S. Chickasaw: The launching
of this ship on Feb 10, 1864 resulted in a unsuspected calamity.
After the wine-breaking ceremony, the ship "plunged into the river, rising
again, and floating like a cork." "The anchor was jerked overboard, and
the immense rope was being paid out with fearful rapidity." The huge coils
of rope swept overboard the following guests: "Miss Jenny Eads, daughter
of J.B. Eads; Miss Mary Maguire, daughter of Mr. John Maguire; Mr. O.B.
Filley, son of Mr. O. D. Filley; and Mr. and Mrs. Wm. P. Bradley. The chair
on which Miss Stewart sat was pulled into the river, and she herself thrown
on the coil of ropes, where she was grasped by two gentlemen and literally
dragged away from the rope. The unfortunate persons supported themselves
in the water by getting hold of pieces of timber, until two skiffs pushed
out into the river and picked them up, all save Mrs. Bradley, who was supposed
to have been stunned by striking one of the timbers, and drowned. "
[History of Saint Louis City and County, by J. Thomas Scharf; Louis H.
Everts & Co.; 1883]. Despite the tragedy, the Chickasaw was commissioned
14 May 1864. Patrolled the Mississippi river and saw action at the Battle
of Mobile Bay. Decommissioned 6 July 1865, laid up in New Orleans until
sold 12 September 1874.

U.S.S. Chickasaw, Drawing courtesy of the U.S. Naval Historical Center.
U.S.S. Choctaw: Designed by Capt. Wm.
D. Porter. 225 feet long, "originally designed for a turret and two heavy
guns. She was afterwards altered so that she could be used either as a
ram (bell metal of two feet in length) or as gunboat. "Commissioned
23 March 1863.(See picture above) Besides patrolling the Mississippi river
as well as its tributaries it was used against Confederate fortifications
at Haynes' Bluff, Yazoo City, and saw action at Millkin's Bend, La
. Between March and May 1864, she was used in the attack on Fort DeRussy.
Decommissioned, 22 July 1865 in Algiers, LA. Sold 28 March 1866.
![]() |
The U.S.S. Choctaw was originally a merchant sidewheel steamer,
built in 1853,
but later converted at Eads' shipyard in 1862 to an ironclad ram.
Watercolor by Ens. D. M. N. Stouffer, ca. 1864-65.
David Dixon Porter Papers,
Library of Congress, Prints & Photographs Division.
U.S.S. Essex: [Information and pictures]
U.S.S. Etlah: Built under the supervision
of D. G. Wells, government engineer. "The keel of the Etlah was laid in
August, 1863, but owning to alterations found necessary, from actual experiments
with monitors of this class, the completion of the vessel was delayed beyond
the original contract time. The Etlah was the largest vessel ever built
on the Mississippi up to that time, and when she was launched, on July
2, 1865, a vast concourse assembled to witness the trial."
The Etlah weighed about 1800 tons, "carried two guns, one 11-inch Dahlgren
and one 150-punder rifled Parrott." Its "extreme length was 225 feet with
a breadth of beam of forty-five feet; depth of hold was eleven feet; thickness
of side armor was three inches; thickness of deck armor was one inch; internal
diameter of turret was twenty feet; thickness of turret was eight inches;
internal diameter of pilot house was six feet;" thickness of armor on pilot
house was ten inches; two motive-engines; twenty-two inch diameter cylinders;
stroke length: thirty inches; two nine inch diameter propellers. [History
of Saint Louis City and County, by J. Thomas Scharf; Louis H. Everts &
Co.; 1883] Since she and her twin, the U.S.S. Shiloh were completed
at end of war, they never saw combat service. It was sold 12 September
1874.
U.S.S. Fort Henry: Designed by Capt. Wm. D. Porter. Launched from Marine Railway Company in Carondelet on Sept. 22, 1862. Was 280 feet long and about 40 feet wide. [History of Saint Louis City and County, by J. Thomas Scharf; Louis H. Everts & Co.; 1883]
U.S.S. Louisville: Commissioned 16 January
1862. Fort Donelson, Columbus, Ky, Island No. 10, New Madrid, Fort Pillow,
Battle of Memphis, Vicksburg, White River expedition, Ft. Hindman,
captured the steamer Evansville, Steele's Bayou Expedition, Grand
Gulf, Red River Expedition, as well as patrol duty on the Mississippi river.
Decommissioned 21 July 1865. Sold at auction 29 November 1865 at
Mound City, Illinois.
U.S.S. Milwaukee: Sister ship of the
U.S.S. Winnebago. Took part in the Battle of Mobile Bay and operations
against Ft. Blakely. In the Blakley river she struck a Confederate torpedo
and sunk. Fortunately all the crew was able escape with no loss of life.

U.S.S.
Milwaukee, probably in Mobile Bay in 1865. Photo courtesy of U.S. Naval
Historical Center.
U.S.S. Neosho: Red River Campaign. Engaged
Confederate batteries on the Cumberland River near Nashville in December
1864.
U.S.S. Osage: The smallest ship of her class. "One hundred and eighty feet long by forty-five feet wide, with four feet depth of hold, and had an iron hull divided into six compartments. When fully complete and armed she had a draft of only three and a half feet of water. She was of the monitor pattern, and carried two long-range eleven-inch guns placed in a turret on the forward deck. Her hull was strengthened on the outside and two feet below the water-line by a plating of four-inch iron. Her deck, the outer edges of which extended but twelve inches above the water, was slightly oval, instead of being flat, as was the case with the other gunboats built on the Mississippi." [History of Saint Louis City and County, by J. Thomas Scharf; Louis H. Everts & Co.; 1883] The U.S.S. Osage saw action on the Red River Campaign.

The USS Osage, a river monitor built by James B. Eads at the Carondelet shipyard. The Osage was propelled by a stern paddlewheel. It was the first U.S. Navy ship to use a periscope in combat. The Osage was used both on rivers as well as in saltwater of Mobile Bay. She was sunk by a Confederate torpedo (mine) in the Blakely River, Alabama March 29, 1865. (photo credit, Library of Congress)
U.S.S. Pittsburgh: Saw action at Ft.
Henry but was put out of action in assault on Ft. Donelson due to severe
damage. Sent to Cairo, Ill. for repairs. Took part in the attack on Island
No. 10, Grand Gulf, and the Red River Campaign.

U.S.S.
Pittsburg (Pittsburgh). Courtesy of the U.S. Naval Historical Center.
U.S. S. Shiloh: Was a sister ship of the U.S.S. Etlah. However its maker, McCord & Steel "had considerable difficulty in launching the "Shiloh", but she was finally gotten into the water. This vessel was built in three separate divisions or compartments. Her turret was composed of one hundred and sixty plates of iron one inch in thickness by forty inches in width and nine feet high, each plate weighing about twelve hundred pounds. The plates were riveted together by bolts of one and a half inches in thickness, which, with the arrangement of the planed joints of the plates, rendered it one solid mass of iron weighing over one hundred tons. The turret, when occasion required it, was revolved by two turret engines, and moved upon a stationary ring. (see above description of U.S.S. Shiloh for other details) Completed at the end of the Civil War and never saw action. Eventually sold at auction on 12 September 1874.
U.S.S. Winnebago: Commissioned on 27 April 1864 Patrolled the Mississippi River and participated in the Battle of Mobile Bay. Also was involved in shelling of Ft. Morgan and operations against Ft. Blakely. Later served on the Tombigbee river against Confederate forces in Montgomery and Selma, Alabama. Remained in U.S. Navy service, stationed at Mobile Bay and later New Orleans. Sold at auction on 12 September 1874 to Nathaniel McKay, who then sold it to the Peruvian Navy. Renamed the "Manco Capac".
U.S. S. Cincinnati: Commissioned at Mound
City, Ill., 16 January 1862. Fired the first shot against Ft. Henry but
was heavily damaged during the battle. Returned to Cairo, Illinois for
repairs. Took part in operations against Island No. 10. She was sunk
in 11 feet of water at the Battle of Plum Point after being rammed by the
Confederate ships, "General Bragg" and "Sterling Price".
After two months she was raised and back in action. Took part in the expedition
up the Yazoo river to Steele's Bayou. On May 27th, 1863 she was sunk in
three fathoms of water during an operation against Confederate batteries
at Vicksburg, Mississippi. Raised a second time on August 1863,
took part once again at patrolling the Mississippi river and Mobile Bay..
Decommissioned 4 August 1865 at Algiers, La. She was sold at New Orleans
28 March 1866.
U.S.S. Mound City: Took part in operations
against Island No. 10. Sunk May 10, 1862 in 12 feet of water at the Battle
of Plum Point after being rammed by the Confederate ship, "General Van
Dorn". Was raised the next day, and on June 12th 1862, became Capt. Charles
H. Davis' flagship during his expedition up the White River. At St. Charles,
Arkansas the "Mound City" was crippled after a Confederate shell penetrated
her iron-plating and exploded her steam drum. Of the crew of 187 men, 125
were killed and 25 wounded (including Capt. Davis). Aug 16th 1862, the
"Mound City" was back in operation at Milliken's Bend, north of Vicksburg.
Took part in the sortie up the Yazoo river to Steele's Bayou, and against
the Confederate batteries at Grand Gulf. Participated in the Red River
campaign, including the assualt on Ft. De Russy.
Midi file courtesy of :
Benjamin
Tubb
[19th Century American Popular Music]
Words by D. Brainerd Williamson, music by James W. Porter
Dedicated to Capt. John Ericson, inventor of the Monitor.
O give us a Navy of Iron,
And to man it our Yankee Lads;
And we'll conquer the world's broad oceans,
With our Navy of Iron clads;
Then adieu to _Britannia's_ power,
We'll crush it when ever we please;
The _Lion_ shall yield to the _Eagle_,
And _Columbia_ shall rule the sea's.
O give us a Navy of Iron,
And to man it our Yankee Lads;
And we'll conquer the world's broad oceans,
With our Navy of Iron clads.
Old England the foe of our fathers,
The foe of their children today,
Is gloating in hopes that our Union
In darkness is passing away.
But Treason shall die in its ashes,
And stronger than ever before;
We'll turn on the jealous old tyrant,
And punish John Bull at the door.
O give us a Navy of Iron,
And to man it our Yankee Lads;
And we'll conquer the world's broad oceans,
With our Navy of Iron clads.
And where in the wide world a nation,
That could cope with our Iron Jacks?
We would sweep all their seas and harbors,
Of their Warriors and Merrimacs.
Then prove to the despots of Europe,
That freedom must reign on the seas.
O give us a Navy of Iron,
And to man it our Yankee Lads;
And we'll conquer the world's broad oceans,
With our Navy of Iron clads.
U.S.S.
Baron De Kalb (formerly the "St. Louis")
U.S.S.
Cairo
C.S.S.
Arkansas (Confederate Ironclad)
C.S.S.
Arkansas (Confederate Military History)
Confederate State
Navy
Vicksburg National
Military Park (where the U.S.S. Cairo is on display)
Naval
Historical Center
Naval
Historical Center (Battle Chronology)
Naval
War (American Civil War)
Confederate
Torpedos (Mines) (excellent pictures of various types)
History's Time Portal to Old St. Louis