Galveston TX002

1862-10-04 to 1862-10-04 · TX · Operations to Blockade the Texas Coast [September 1862-January 1863] · frozen result: Union · NPS summary (as listed)

CWSAC description
The U.S. Navy began a blockade of Galveston Harbor in July 1861, but the town remained in Confederate hands for the next 14 months. At 6:00 am on October 4, 1862, Cdr. W.B. Renshaw, commanding the blockading ships in the Galveston Bay area, sent Harriet Lane into the harbor, flying a flag of truce. The intention was to inform the military authorities in Galveston that if the town did not surrender, the U.S. Navy ships would attack; a one-hour reply would be demanded. Col. Joseph J. Cook, Confederate military commander in the area, would not come out to the Union ship or send an officer to receive the communication, so Harriet Lane weighed anchor and returned to the fleet. Four Union steamers, with a mortar boat in tow, entered the harbor and moved to the same area where Harriet Lane had anchored. Observing this activity, Confederates at Fort Point fired one or more shots and the U.S. Navy ships answered. Eventually, the Union ships disabled the one Confederate gun at Fort Point and fired at other targets. Two Rebel guns from another location opened on the Union ships. The boat that Col. Cook had dispatched now approached the Union vessels and two Confederate officers boarded U.S.S. Westfield. Renshaw demanded an unconditional surrender of Galveston or he would begin shelling. Cook refused Renshaw's terms, and conveyed to Renshaw that upon him rested the responsibility of destroying the town and killing women, children, and aliens. Renshaw threatened to resume the shelling and made preparations for towing the mortar boat into position. One of the Confederate officers then asked if he could be granted time to talk with Col. Cook again. This officer, a major, negotiated with Renshaw for a four-day truce to evacuate the women, children, and aliens from the city. Cook approved the truce but added a stipulation that if Renshaw would not move troops closer to Galveston, Cook would not permit his men to come below the city. The agreement was finalized but never written down, which later caused problems. The Confederates did evacuate, taking all of their weapons, ammunition, supplies, and whatever they could carry with them. Renshaw did not think that the agreement allowed for all this but, in the end, did nothing, due to the lack of a written document. The fall of Galveston meant that one more important Confederate port was closed to commerce. But the port of Galveston was not shut down for long.

Command responsibility (ledger v2)

US: W.B. Renshaw

Grade A under rule 2; echelon flotilla.

A cited passage states the command.

Commander
arnold-cwsac-commanders, battle TX002, belligerent US, fullname W.B. Renshaw; column rank · snapshot 6c587c298717…
Cdr. W.B. Renshaw, commanding the blockading ships in the Galveston Bay area
arnold-cwsac-battles, battle TX002; column description · snapshot 952b5d08402a…

Confederate: Joseph J. Cook

Grade A under rule 3a; echelon detachment_or_post.

Other candidates: X.B. Debray

Cook and Debray (both Colonel). The description calls Cook the Confederate military commander in the area; he refused the demand and approved the truce on October 4 (rule 3(a)). Cook says Debray reached the city on the night of the 4th and gave orders the next day, after the one-day frozen interval, so no command change within the interval is recorded. Cook's earlier departmental order to withdraw if the defences were overcome is not a superior directing the action.

Colonel
arnold-cwsac-commanders, battle TX002, belligerent Confederate, fullname Joseph J. Cook; column rank · snapshot 6c587c298717…
Colonel
arnold-cwsac-commanders, battle TX002, belligerent Confederate, fullname X.B. Debray; column rank · snapshot 6c587c298717…
Col. Joseph J. Cook, Confederate military commander in the area
arnold-cwsac-battles, battle TX002; column description · snapshot 952b5d08402a…
Cook refused Renshaw's terms
arnold-cwsac-battles, battle TX002; column description · snapshot 952b5d08402a…
On the night of the 4tli you reached the city, and during the next day I received your orders
or15-cook-galveston-selections-v1 · snapshot 8ad9ea03592a…

Side strength (ledger v3)

US: grade D: no usable figure (modelled in the rating runs)

whole_engagement_leakage

Confederate: grade D: no usable figure (modelled in the rating runs)

whole_engagement_leakage

Dossier claims

Draft dossier, revision texas-coast-1862-review-correction-2026-09-25. Claims are extraction records with their quoted passages, not historical adjudication. JSON

information

supportedunresolved Cook says the assembly of vessels the day before gave every reason to expect an attack. Renshaw learned from a deserter that guns were being removed at night.

Knowledge attributed in interested reports; no message log inspected.

The assemblage of vessels off the bar on the day previous had given us every reason to expect an attack
or15-cook-galveston-selections-v1, p.152 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…
The first intimation we bad of their differing from us in the sense of our terms of agreement was through a deserter
orn19-renshaw-galveston-selections-v1, p.257 (OCR page markers; not checked against print) · snapshot 614225ae9276…

logistics

supportedunresolved Cook says he had arranged railroad transportation beforehand and, during the truce, removed the guns, machinery and records, all government property except the 10-inch gun being gone by 11 a.m. on the 8th. Renshaw says his ferryboats carried six weeks' provisions and that yellow fever on shore affected his terms.

Movement and supply statements from interested reports; not returns.

I had made arrangements with the railroad com- pany to be ready with transportation to meet any emergency
or15-cook-galveston-selections-v1, p.152 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…
we had removed all the Government property of any value ex- cept the 10-inch gun at Fort Point
or15-cook-galveston-selections-v1, p.152 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…
The ferryboats can carry but six weeks’ provisions
orn19-renshaw-galveston-selections-v1, p.260 (OCR page markers; not checked against print) · snapshot 614225ae9276…
they informed me that the yellow fever prevailed on shore
orn19-renshaw-galveston-selections-v1, p.257 (OCR page markers; not checked against print) · snapshot 614225ae9276…

objectives

disputedunresolved Renshaw demanded the surrender of the forts and then the unconditional surrender of the city. Cook, under standing orders to withdraw if the harbor could not be held, refused to surrender but asked time to remove women and children. Their accounts of the four-day truce differ: Cook says only that no new defenses were to be built or old ones strengthened and the fleet was not to approach; Renshaw says his understanding was that everything should remain as it was, and that the unwritten agreement let the Confederates carry off guns.

Two interested accounts of an unwritten agreement; neither is adopted.

demand the surrender of the forts, giving them one hour to decide.
orn19-renshaw-galveston-selections-v1, p.255 (OCR page markers; not checked against print) · snapshot 614225ae9276…
I demanded the unconditional surrender of the city
orn19-renshaw-galveston-selections-v1, p.256 (OCR page markers; not checked against print) · snapshot 614225ae9276…
been ordered by the general commanding this department to withdraw our troops from the city
or15-cook-galveston-selections-v1, p.152 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…
I sent a messenger with the answer that I should not surrender the city
or15-cook-galveston-selections-v1, p.152 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…
that during the time we should not construct any new or strengthen any old defenses within the city, and the fleet not to be brought any nearer the city.
or15-cook-galveston-selections-v1, p.152 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…
My understanding of our terms, in which Commanders Guest and Wain wright and Lieutenant-Commander Law agree with me, was that everything should remain as it was at the time of the agreement.
orn19-renshaw-galveston-selections-v1, p.257 (OCR page markers; not checked against print) · snapshot 614225ae9276…
might possibly have been saved had we written out our agreement
orn19-renshaw-galveston-selections-v1, p.257 (OCR page markers; not checked against print) · snapshot 614225ae9276…

outcome

supportedpost_outcome The frozen and live results read Union victory. Renshaw says his vessels captured the harbor defenses and city after a feeble resistance; Cook says the troops and material were removed and most of the population left before he withdrew to Virginia Point. The frozen description says the fall of Galveston closed a Confederate port.

Retain the original result and engagement interval; later movements and campaign contribution are different measures. No new probabilities or individual causal credit.

Union victory
arnold-cwsac-battles, battle TX002; column results_text · snapshot 952b5d08402a…
Union Victory
nps-tx002-v1, Results · snapshot 06505dce8887…
yesterday captured, after a feeble resistance, the defenses of the harbor and city of Galveston.
orn19-renshaw-galveston-selections-v1, p.254 (OCR page markers; not checked against print) · snapshot 614225ae9276…
I left with my staff for Virginia Point
or15-cook-galveston-selections-v1, p.152 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…
The fall of Galveston meant that one more important Confederate port was closed to commerce.
arnold-cwsac-battles, battle TX002; column description · snapshot 952b5d08402a…

supportedpost_outcome The frozen casualty text reads None and the frozen and live casualty fields 0. Neither Cook nor Renshaw gives a casualty figure.

Original casualty returns were not inspected; preserve totals, categories, cutoffs and differences. No canonical reconciliation or casualty-based opening count; related actions must not be added without resolving population overlap. Absence of a reported figure is not a measured zero.

None
arnold-cwsac-battles, battle TX002; column casualties_text · snapshot 952b5d08402a…
0 total (US 0; CS 0;)
nps-tx002-v1, Estimated Casualties · snapshot 06505dce8887…

responsibility

supportedunresolved The frozen commanders are Colonel Joseph J. Cook and Colonel X. B. Debray (Confederate) and Commander W. B. Renshaw (navy). Cook commanded at Galveston, answered the surrender demand and negotiated the truce; he says Debray reached the city on the night of the 4th and gave orders the next day. Renshaw commanded the flotilla and agreed the truce with officers of the other vessels present.

Command roles from interested reports; Debray's part is described by Cook only. No automatic sole credit.

Colonel
arnold-cwsac-commanders, battle TX002, belligerent Confederate, fullname Joseph J. Cook; column rank · snapshot 6c587c298717…
Colonel
arnold-cwsac-commanders, battle TX002, belligerent Confederate, fullname X.B. Debray; column rank · snapshot 6c587c298717…
Commander
arnold-cwsac-commanders, battle TX002, belligerent US, fullname W.B. Renshaw; column rank · snapshot 6c587c298717…
On the night of the 4tli you reached the city, and during the next day I received your orders
or15-cook-galveston-selections-v1, p.152 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…
Captain Guest, who, as well as Captains Wain wright and Law, were with me
orn19-renshaw-galveston-selections-v1, p.256 (OCR page markers; not checked against print) · snapshot 614225ae9276…

strength

unknownunresolved

No inspected return establishes matched personnel at a common opening boundary. The frozen side-specific numerical strength bounds are blank (missing_numeric_strength). No figure in this pass is adopted as a simultaneous opening force.

supportedunresolved The frozen force field reads None and the frozen casualty bounds 0; the live field reads 0. Renshaw names the Westfield, Harriet Lane, Owasco, Clifton and the schooner Henry Janes. Cook says the blockading fleet numbered eight vessels, four armed steamers and a mortar-boat, and that the vessels fired about twenty guns on a battery of one 10-inch gun; two 24-pounders fired from the bay side of the city.

Vessel lists and gun counts, not personnel. None is adopted as a matched opening strength.

None
arnold-cwsac-battles, battle TX002; column forces_text · snapshot 952b5d08402a…
0 total (US 0; CS 0;)
nps-tx002-v1, Forces Engaged · snapshot 06505dce8887…
The steamers Westfield, Harriet Lane, Commander Wain- wright; Owasco, Commander Guest; Clifton, Lieutenant-Commander Law, and the schooner Henry Janes
orn19-renshaw-galveston-selections-v1, p.254 (OCR page markers; not checked against print) · snapshot 614225ae9276…
the blockading fleet off the bar of Galveston consisted of eight vessels, four of which were armed steamers, one a mortar-boat
or15-cook-galveston-selections-v1, p.151 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…
with about twenty guns on oar battery, which consisted of but one gun, a 10-inch
or15-cook-galveston-selections-v1, p.151 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…
the two 24-pounders in battery on the bay side
or15-cook-galveston-selections-v1, p.152 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…

terrain

supportedunresolved Renshaw says a battery on Pelican Island proved to be dummy guns, and that silencing the town battery would have meant firing through the populated town where the consular flags flew. Cook says the Fort Point garrison retreated across low, open ground.

Harbor and town features from interested reports; the dummy battery was a prepared feature, so the tag stays unresolved. No chart inspected.

The guns of a formidable-looking battery on Pelican Island, from which we anticipated a heavy fire, proving to be
orn19-renshaw-galveston-selections-v1, p.255 (OCR page markers; not checked against print) · snapshot 614225ae9276…
where all the consular flags were flying
orn19-renshaw-galveston-selections-v1, p.256 (OCR page markers; not checked against print) · snapshot 614225ae9276…
retreated across the low, open grounds toward the city.
or15-cook-galveston-selections-v1, p.152 (OCR page markers; not checked against print) · snapshot 8ad9ea03592a…

Open questions