Kock's Plantation LA015

1863-07-12 to 1863-07-13 · LA · Taylor's Operations in West Louisiana [June-September 1863] · frozen result: Confederate · NPS summary (as listed)

CWSAC description
Following the surrender of Port Hudson, two Union divisions were shifted to Donaldsonville by transports, to move inland and pacify the interior. They marched up Bayou Lafourche, a division on each bank. Confederate Brig. Gen. Tom Green posted a brigade on the east side of the bayou and placed his second brigade on the other side. As the Union forces advanced, skirmishing occurred on July 11 and 12. On the morning of the 13th, a foraging detachment set out along both banks of the bayou. Upon reaching Kock's Plantation (Saint Emma Plantation) they met Rebel skirmishers that forced them back. Then, the Confederates flung their might against the Union troops which kept retiring although they tried to make stands at various points. The Union troops eventually fell back to the protection of the guns in Fort Butler at Donaldsonville, about six miles from Kock's Plantation. A much smaller Rebel force had routed the Yankees. The expedition failed, leaving the Confederates in control of the interior.

Command responsibility (ledger v2)

US: Cuvier Grover

Grade A under rule 3a; echelon unknown.

Other candidates: Godfrey Weitzel

Both listed brigadier generals tie on rank. Irwin says that from the night of the 11th Grover held both banks before Donaldsonville with two divisions (his own and Weitzel's), ordered out the July 13 advance guards, and drew in the whole force after the reverse; he calls the losses 'Grover's'. The skirmishing of the 12th was in front of that force (rule 3(a)). Birge, temporarily commanding Grover's division, and the brigade commanders Dudley and Morgan are subordinate context. No inspected passage shows Weitzel directing; the live page lists him. Echelon: two divisions, no formation named.

Brigadier General
arnold-cwsac-commanders, battle LA015, belligerent US, fullname Godfrey Weitzel; column rank · snapshot 6c587c298717…
Brigadier General
arnold-cwsac-commanders, battle LA015, belligerent US, fullname Cuvier Grover; column rank · snapshot 6c587c298717…
Grover therefore found himself before Donaldson- ville, holding both banks of Bayou La Fourche with two divisions.
irwin-taylor-louisiana-1863-selections-v1 · snapshot 670aff06f5b5…
Grover moved out an advance guard on either side
irwin-taylor-louisiana-1863-selections-v1 · snapshot 670aff06f5b5…
Grover's losses in this affair, called the battle of Cox's Plantation,
irwin-taylor-louisiana-1863-selections-v1 · snapshot 670aff06f5b5…

Confederate: Tom Green

Grade A under rule 2; echelon unknown.

Irwin, Green's report and the description put Green in command of both brigades facing Donaldsonville and directing the attack (rule 2, grade A). Green commanded two brigades; no echelon is named.

Brigadier General
arnold-cwsac-commanders, battle LA015, belligerent Confederate, fullname Tom Green; column rank · snapshot 6c587c298717…
He was confronted by Green with his own brigade and Major
irwin-taylor-louisiana-1863-selections-v1 · snapshot 670aff06f5b5…
Calling Colonel Lane, who commanded Major’s brigade, from the other side of the bayou, I gave him the necessary instructions
or26-1-green-louisiana-selections-v1 · snapshot e4569881ab69…
Confederate Brig. Gen. Tom Green posted a brigade on the east side of the bayou and placed his second brigade on the other side.
arnold-cwsac-battles, battle LA015; column description · snapshot 952b5d08402a…

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

InputClassPrintedBasisBoundCodesPassage
cs-major-800bound800reported_effectiveone_sided_boundpartial_scopedossier claim reported-force-scope
cs-green-750bound750reported_effectiveone_sided_boundpartial_scopedossier claim reported-force-scope

Dossier claims

Draft dossier, revision . Claims are extraction records with their quoted passages, not historical adjudication. JSON

information

supportedunresolved Irwin says Green at first took the transports for an attack on him rather than a sign that Port Hudson had fallen, and that the Union columns were struck almost before they knew anything more than pickets was in front. Green says the cornfields kept him from ascertaining the enemy's strength with skirmishers.

Attributed knowledge from a history and an interested report; no dispatches inspected.

it did not at once occur to him that Port Hudson was lost ; he simply thought these troops were coming to attack him.
irwin-taylor-louisiana-1863-selections-v1, p.251 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
drove them In almost before they were aware of the presence in their front of anything more than the pickets,
irwin-taylor-louisiana-1863-selections-v1, p.252 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
not being able to ascertain his precise strength with skirmishers
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…

logistics

disputedunresolved NPS says a foraging detachment set out on both banks; Irwin says the advance aimed to find new fields for forage and that two guns were lost. Green claims three guns with ammunition, provisions, tents, wagons and teams.

Statements from a summary, a history and an interested report; the captured-gun counts differ. Not returns.

a foraging detachment set out along both banks of the bayou.
nps-la015-v1, Description · snapshot 19c45491457f…
to find new fields for forage for the animals,
irwin-taylor-louisiana-1863-selections-v1, p.251 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
two guns were lost,
irwin-taylor-louisiana-1863-selections-v1, p.253 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
We captured also three pieces of artillery,
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…

objectives

supportedunresolved Irwin says Grover moved out without any intention of bringing on a battle, and that afterwards it was agreed not to press Taylor until the gunboats reached Berwick Bay. Green says he meant to feel the enemy and, if the chance offered, assault the advancing columns. NPS says the Union aim was to move inland and pacify the interior.

Stated aims from a history, an interested report and a summary.

without any intention of bringing on a battle or of hastening the enemy's movements,
irwin-taylor-louisiana-1863-selections-v1, p.251 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
It was agreed on all hands that it was inexpedient to press Taylor hard
irwin-taylor-louisiana-1863-selections-v1, p.254 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
if a favorable opportunity offered, to make an assault on his advancing columns.
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…
to move inland and pacify the interior.
nps-la015-v1, Description · snapshot 19c45491457f…

outcome

disputedpost_outcome The frozen result reads Confederate victory and the live result Confederate Victory. Green says he drove the enemy about four miles, almost to the fort, in a complete rout; Irwin says the command was driven back about a mile until Paine came up; NPS says the Union troops fell back to Fort Butler, about six miles away.

Retain the original result and engagement interval; later movements and campaign contribution are different measures. No new probabilities or individual causal credit. The distance of the Union retreat differs among the accounts.

Confederate victory
arnold-cwsac-battles, battle LA015; column results_text · snapshot 952b5d08402a…
Confederate Victory
nps-la015-v1, Results · snapshot 19c45491457f…
thus we drove them for about 4 miles and almost to the walls of the fort.
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…
on both banks driven back about a mile, until Paine came to Its support ;
irwin-taylor-louisiana-1863-selections-v1, p.252 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
The Union troops eventually fell back to the protection of the guns in Fort Butler at Donaldsonville, about six miles from Kock's Plantation.
nps-la015-v1, Description · snapshot 19c45491457f…

disputedpost_outcome The frozen casualty text reads 463 total (US 430; CS 33); the live field reads 498 total (US 465; CS 33). Irwin gives Grover's loss as 2 officers and 54 men killed, officers printed '/' in OCR and 210 men wounded and 3 officers and 183 men captured or missing, 465 in all. Green says his loss did not exceed 3 killed and 30 wounded and puts the enemy's at little less than 1,000, over 500 killed and wounded with about 250 prisoners.

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. Irwin's 465 matches the live Union figure, not the frozen 430.

463 total (US 430; CS 33)
arnold-cwsac-battles, battle LA015; column casualties_text · snapshot 952b5d08402a…
498 total (US 465; CS 33;)
nps-la015-v1, Estimated Casualties · snapshot 19c45491457f…
3 officers and 183 men captured or missing ; in all 465.
irwin-taylor-louisiana-1863-selections-v1, p.253 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
Our loss did not exceed 3 killed and 30 wounded, 6 mortally,
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…
while that of the enemy in killed, wounded, and prisoners was little less than 1,000.
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…
There were over 500 of the enemy killed and wounded, of whom 200 were left dead on the field, and about 250 prisoners.
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…

responsibility

supportedunresolved Irwin says Morgan, under Birge temporarily commanding Grover's division, handled his brigade badly and exposed Dudley's flank, that Grover rode out and drew in the force, and that Morgan's court-martial conviction was set aside by Banks. Green directed the attack and gave Lane, commanding Major's brigade, his instructions. The frozen commanders are Brigadier Generals Tom Green, Godfrey Weitzel and Cuvier Grover; the live page lists Weitzel and Green. No inspected passage describes Weitzel directing the action.

Command roles from a history and an interested report; the listed commanders do not receive automatic sole credit.

Morgan, under the orders of Birge, temporarily commanding Grover's division,
irwin-taylor-louisiana-1863-selections-v1, p.252 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
Morcran handled his brigade badly,
irwin-taylor-louisiana-1863-selections-v1, p.252 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
Grover rode out, and, seeing what had happened, drew in his whole force.
irwin-taylor-louisiana-1863-selections-v1, p.253 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
but Banks disapproved the proceedings, findings, and sentence
irwin-taylor-louisiana-1863-selections-v1, p.253 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
Calling Colonel Lane, who commanded Major’s brigade, from the other side of the bayou, I gave him the necessary instructions
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…
Brigadier General
arnold-cwsac-commanders, battle LA015, belligerent Confederate, fullname Tom Green; column rank · snapshot 6c587c298717…
Brigadier General
arnold-cwsac-commanders, battle LA015, belligerent US, fullname Godfrey Weitzel; column rank · snapshot 6c587c298717…
Brigadier General
arnold-cwsac-commanders, battle LA015, belligerent US, fullname Cuvier Grover; column rank · snapshot 6c587c298717…
Brigadier General Godfrey Weitzel [US]
nps-la015-v1, Principal Commanders · snapshot 19c45491457f…

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 Weitzel's and Grover's Divisions, XIX Army Corps [US] and two understrength Confederate brigades [CS]; the live field reads zero. Green says Major's brigade had not over 800 effectives and his own three regiments not over 750, against at least ten transports of troops; prisoners named Weitzel's and Dwight's brigades and part of Grover's command. Irwin says Grover held both banks with two divisions, that Dudley's and Morgan's brigades advanced with Paine in support, and that Green posted four regiments with four guns and three regiments with two guns.

Green's effective figures and Irwin's unit identifications; the Union advance was two brigades of two divisions present. None is adopted as a matched opening strength. The live zero is not measured absence.

Godfrey Weitzel's and Cuvier Grover's Divisions, XIX Army Corps [US]; two understrength Confederate brigades [CS]
arnold-cwsac-battles, battle LA015; column forces_text · snapshot 952b5d08402a…
0 total (US 0; CS 0;)
nps-la015-v1, Forces Engaged · snapshot 19c45491457f…
not over 800 effective men present,
or26-1-green-louisiana-selections-v1, p.230 (OCR page markers; not checked against print) · snapshot e4569881ab69…
not over 750 effective men) were posted on the left ascending bank,
or26-1-green-louisiana-selections-v1, p.230 (OCR page markers; not checked against print) · snapshot e4569881ab69…
on July 11 at least ten transports came down from Port Hudson to Donaldson ville, crowded with troops.
or26-1-green-louisiana-selections-v1, p.230 (OCR page markers; not checked against print) · snapshot e4569881ab69…
the prisoners represented that we fought the brigades of Generals Weitzel and Dwight on the right descending bank of the La Fourche,
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…
holding both banks of Bayou La Fourche with two divisions.
irwin-taylor-louisiana-1863-selections-v1, p.251 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
he posted Major with four regiments and four guns on the left or east bank of the bayou, and on the right or west bank three regiments and two guns of his own brigade.
irwin-taylor-louisiana-1863-selections-v1, p.251 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…

terrain

supportedunresolved Irwin says Green was favored by a narrow field, rank corn, willow thickets, deep plantation ditches and his knowledge of the country; Green says the cornfields across the valley kept him from judging the enemy's strength and that the Union troops rallied in the ditches.

Ground described by a history and an interested report; no map verification. Green chose to attack on this ground, so it is not tagged inherited.

favored by a narrow field, a rank growth of corn, dense thickets of willows, the deep ditches common to all sugar plantations in these lowlands,
irwin-taylor-louisiana-1863-selections-v1, p.252 (OCR page markers; not checked against print) · snapshot 670aff06f5b5…
on account of the large cornfields crossing the whole val- ley,
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…
The enemy frequently rallied in the ditches across the fields,
or26-1-green-louisiana-selections-v1, p.231 (OCR page markers; not checked against print) · snapshot e4569881ab69…

Open questions