Lone Jack MO015

1862-08-15 to 1862-08-16 · MO · Operations North of Boston Mountains [August-November 1862] · frozen result: Confederate · NPS summary (as listed)

CWSAC description
Maj. Emory S. Foster, under orders, led an 800-man combined force from Lexington to Lone Jack. Upon reaching the Lone Jack area, he discovered 1,600 Rebels under Col. J.T. Coffee and prepared to attack them. About 9:00 pm on the 15th, he and his men attacked the Confederate camp and dispersed the force. Early the next morning, Union pickets informed Foster that a 3,000-man Confederate force was advancing on him. Soon afterwards, this force attacked and a battle ensued that involved charges, retreats, and counterattacks. After five hours of fighting and the loss of Foster, Coffee and his 1,500 men reappeared, causing Foster's successor, Capt. M.H. Brawner to order a retreat. The men left the field in good order and returned to Lexington. This was a Confederate victory, but the Rebels had to evacuate the area soon afterward, when threatened by the approach of large Union forces. Except for a short period of time during Price's Raid, in 1864, the Confederacy lost its clout in Jackson County.

Command responsibility (ledger v2)

US: Emory S. Foster

Grade A under rule 2; echelon detachment_or_post. command_changedsuperior_directing

A cited passage states the command: Foster led the combined force and attacked Coffee's camp on the night of the 15th. Foster was shot during the fight of the 16th and Brawner commanded and ordered the retreat (rule 4). Totten, commanding the district, sent Foster and instructed him to proceed to Lone Jack (superior_directing: Totten).

Major
arnold-cwsac-commanders, battle MO015, belligerent US, fullname Emory S. Foster; column rank · snapshot 6c587c298717…
About 9:00 pm on the 15th, he and his men attacked the Confederate camp and dispersed the force.
arnold-cwsac-battles, battle MO015; column description · snapshot 952b5d08402a…
Major Foster now halted his command and ordered up his artillery
britton-border-1-boston-mountains-selections-v1 · snapshot 11df6cc34a75…
Captain Brawner was then in command.
or13-foster-lone-jack-selections-v1 · snapshot c55466f47312…
Foster's successor, Capt. M.H. Brawner to order a retreat
arnold-cwsac-battles, battle MO015; column description · snapshot 952b5d08402a…

Confederate: J. T. Coffee

Grade C under rule 3a; echelon unknown. command_changedresponsibility_unresolved

Other candidates: Jeremiah Vard Cockrell, G.W. Thompson, Upton Hays

Cockrell, Thompson and Hays (all Colonel). The side's first combat in the frozen interval was Foster's night attack of August 15 on the camp of '1,600 Rebels under Col. J.T. Coffee' (description); Britton says Coffee, commanding Missouri State Guard troops, 'up to this time, was acting independently of the Confederate officers', with Cockrell's main force three miles away. No listed officer is shown in command of the engaged force at that combat; the passages name one other officer, Coffee, so he is used (rule 3(a) read with rule 2's third bullet, as at AR003; grade C). On the 16th Foster and Britton have Cockrell commanding the Confederates in the fight, and Coffee's men rejoined about 11 a.m. (rule 4: command_changed, successor Cockrell). Thompson and Hays commanded regiments under Cockrell (Britton). Alternative reading: if Coffee's independent force is not taken as the side's engaged force at the first combat, no listed officer is shown in command then, and the tied colonels give rule 3(c), grade D.

Colonel
arnold-cwsac-commanders, battle MO015, belligerent Confederate, fullname Jeremiah Vard Cockrell; column rank · snapshot 6c587c298717…
Colonel
arnold-cwsac-commanders, battle MO015, belligerent Confederate, fullname G.W. Thompson; column rank · snapshot 6c587c298717…
Colonel
arnold-cwsac-commanders, battle MO015, belligerent Confederate, fullname Upton Hays; column rank · snapshot 6c587c298717…
Cock- rell, who commanded the rebels in the fight
or13-foster-lone-jack-selections-v1 · snapshot c55466f47312…
Colonel Cockrell, who had been in command of the rebel forces engaged
britton-border-1-boston-mountains-selections-v1 · snapshot 11df6cc34a75…
he discovered 1,600 Rebels under Col. J.T. Coffee and prepared to attack them
arnold-cwsac-battles, battle MO015; column description · snapshot 952b5d08402a…
up to this time, was acting independently of the Confederate officers
britton-border-1-boston-mountains-selections-v1 · snapshot 11df6cc34a75…
Colonel Cockrell, with the main rebel force, was encamped that night about three miles northwest of town
britton-border-1-boston-mountains-selections-v1 · snapshot 11df6cc34a75…
was reinforced by twelve hundred men under Colonel Coffey
britton-border-1-boston-mountains-selections-v1 · snapshot 11df6cc34a75…

Side strength (ledger v3)

US: grade A, 800 (760–850)

applicability_unresolvedbasis_mixedcompiled_dependencederivation_unknownwhole_engagement_leakage

InputClassPrintedBasisBoundCodesPassage
us-cwA800reported_engagedderivation_unknown
800 men
arnold-cwsac-forces, battle MO015, belligerent US; column description · snapshot a462f6be964b…
us-npsA800reported_engagedderivation_unknowndossier claim reported-force-scope
us-foster-orderC800unknownengagement_link_unknowndossier claim reported-force-scope
us-britton-806B806unknowndossier claim reported-force-scope
us-foster-740C740unknownpost_engagement_statedossier claim reported-force-scope
us-britton-740C740unknownpost_engagement_statedossier claim reported-force-scope

Confederate: grade C, 2,250 (1,500–3,000)

basis_mixedbound_conflictopponent_estimate_pointsingle_inputwhole_engagement_leakage

InputClassPrintedBasisBoundCodesPassage
cs-foster-coffeebound1,600unknownloweradversary_or_hearsay_estimatepartial_scopedossier claim reported-force-scope
cs-foster-3000C3,000unknownadversary_or_hearsay_estimatedossier claim reported-force-scope
cs-foster-coffee-returnbound1,500unknownloweradversary_or_hearsay_estimatepartial_scopedossier claim reported-force-scope
cs-britton-coffeybound1,200unknownloweradversary_or_hearsay_estimateone_sided_boundpartial_scopedossier claim reported-force-scope
cs-britton-3000bound3,000unknownlowerone_sided_bounddossier claim reported-force-scope
cs-jackman-500bound500unknownlowerpartial_scopedossier claim reported-force-scope

Dossier claims

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

information

supportedunresolved Foster says his pickets reported the enemy advancing about daylight, that several scouts had reported but nothing came from Warren, and that he waited believing Warren within hearing of his guns. Britton says captured pickets gave Foster information on the enemy's strength and location, that Foster thought the reported strength exaggerated, that Warren took the wrong road, and that on the night of the 15th Union skirmishers mistook their own advance for the enemy and killed two of them.

Reported knowledge in an interested report and a participant history; no message chain inspected.

About daylight the pickets came in and reported that the enemy were advancing
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
Several scouts had reported, and no word from Warren, who should have been in supporting distance.
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
believ- ing him to be in hearing of my artillery, I awaited the enemy.
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
from whom he obtained a good deal of information in regard to the strength and location of the rebel forces
britton-border-1-boston-mountains-selections-v1, p.327 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
He was inclined to regard the re- ported strength of the combined forces of the enemy in the vicinity as exaggerated
britton-border-1-boston-mountains-selections-v1, p.329 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
that officer for some cause took the wrong road
britton-border-1-boston-mountains-selections-v1, p.329 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
mistook the fire as coming from the enemy
britton-border-1-boston-mountains-selections-v1, p.328 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…

logistics

disputedunresolved Foster says his men and horses were worn out after forty-eight hours without food or rest before reaching Lexington, and that Cockrell told him the Confederates were completely out of ammunition. Britton says the march of the 15th was thirty-three miles on a very hot day, that the artillery horses were all killed, and that the Confederates were fairly well supplied with arms and ammunition captured at Independence.

The Confederate ammunition state is disputed (Cockrell's statement to Foster against Britton's inference); the two may refer to different times (supply on entering the fight against exhaustion at its end). No return inspected.

men and horses very much worn-out, having marched forty-eight hours without food or rest.
or13-foster-lone-jack-selections-v1, p.238 (OCR page markers; not checked against print) · snapshot c55466f47312…
that they were completely cut of ammunition
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
marched thirty-three miles on an exceedingly hot day.
britton-border-1-boston-mountains-selections-v1, p.327 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
They had, however, killed all the horses hitched to the two pieces of artillery
britton-border-1-boston-mountains-selections-v1, p.332 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
were fairly well supplied in this respect.
britton-border-1-boston-mountains-selections-v1, p.335 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…

objectives

supportedunresolved Foster was ordered to march toward Lone Jack with 800 men and says that had his orders to Warren been obeyed the enemy would have been captured or destroyed. Britton says the Confederates were concentrating near Lone Jack with a view to marching on Lexington, and that Warren was directed to join Foster by the evening of the 15th or morning of the 16th.

Stated orders and aims; not evaluated.

I received an order from you at 1 o’clock a. m. August 15 to march at daylight in the direction of Lone Jack
or13-foster-lone-jack-selections-v1, p.238 (OCR page markers; not checked against print) · snapshot c55466f47312…
Had your orders been obeyed the whole force of the enemy would have been captured or terribly routed and destroyed.
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
with the view of marching on Lexington.
britton-border-1-boston-mountains-selections-v1, p.326 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
was directed to join him by the evening of the 15th or morning of the 16th.
britton-border-1-boston-mountains-selections-v1, p.327 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…

outcome

disputedpost_outcome The frozen and live results are Confederate victory. Foster says his 740 men 'whipped' the enemy before Coffee's return, after which Brawner fell back and the enemy took the field about an hour later; Britton says Brawner withdrew unmolested to Lexington, leaving the two guns. NPS says the Union left in good order and that the Confederates soon had to evacuate the area.

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

Confederate victory
arnold-cwsac-battles, battle MO015; column results_text · snapshot 952b5d08402a…
Confederate Victory
nps-mo015-v1, Results · snapshot 44069e5ee762…
The fact that 740 men fought five hours against such odds and whipped them
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
About an hour after the enemy came up and took possession of the field.
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
Captain Brawner marched out of Lone Jack on the Lexington road unmolested by the enemy
britton-border-1-boston-mountains-selections-v1, p.333 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
The men left the field in good order and returned to Lexington.
nps-mo015-v1, Description · snapshot 44069e5ee762…
the Rebels had to evacuate the area soon afterward
nps-mo015-v1, Description · snapshot 44069e5ee762…

disputedpost_outcome Frozen: 270 total (US 160; CS 110). Live: 272 total (US 272; CS 0). Foster could give no casualty list. Britton cites an official statement of 2 officers and 51 men killed, 13 officers and 144 men wounded, and 1 officer and 43 men missing on the Union side, says the enemy acknowledged 118 killed per Brawner, that the Union had lost nearly a third in killed and wounded by eleven o'clock, and that the Confederate loss is not known; Jackman lost four of ten captains killed and three wounded.

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. Britton's components sum to 254 (a computation here), not matching any frozen or live figure. The live CS zero is not measured absence.

270 total (US 160; CS 110)
arnold-cwsac-battles, battle MO015; column casualties_text · snapshot 952b5d08402a…
272 total (US 272; CS 0;)
nps-mo015-v1, Estimated Casualties · snapshot 44069e5ee762…
I can give no list of casualties
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
there were two officers and fifty-one en- listed men killed ; thirteen officers and one hundred and forty-four enlisted men wounded ; and one officer and forty-three enlisted men missing.
britton-border-1-boston-mountains-selections-v1, p.335 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
the enemy acknowledged a loss of one hundred and eigh- teen men killed.
britton-border-1-boston-mountains-selections-v1, p.335 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
a loss of nearly one third their number in killed and wounded.
britton-border-1-boston-mountains-selections-v1, p.332 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
The loss of the Confederates in the battle is not known
britton-border-1-boston-mountains-selections-v1, p.334 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
out of ten captains four were killed and three wounded.
britton-border-1-boston-mountains-selections-v1, p.334 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…

responsibility

supportedunresolved The frozen rows list Cockrell, Thompson and Hays (Colonels) for the Confederates and Foster (Major) for the Union. Foster says no field officers were sent with him because of a jealousy over rank, that Lieutenant Develin was drunk and arrested, and that after he was shot Captain Brawner commanded and fell back, leaving the guns; he names Cockrell as commanding the Confederates. Britton says Cockrell commanded the forces engaged, lists the regiments of Tracy, Hunter, Hancock, Thompson, Hays, Bohannon and Jackman with Quantrill's band, and says Hays and Quantrill were to open the attack mounted.

Command roles reported by participants; Coffee and Warren, not listed commanders, affected the outcome by their movements. No listed commander receives automatic sole credit.

Colonel
arnold-cwsac-commanders, battle MO015, belligerent Confederate, fullname Jeremiah Vard Cockrell; column rank · snapshot 6c587c298717…
Colonel
arnold-cwsac-commanders, battle MO015, belligerent Confederate, fullname G.W. Thompson; column rank · snapshot 6c587c298717…
Colonel
arnold-cwsac-commanders, battle MO015, belligerent Confederate, fullname Upton Hays; column rank · snapshot 6c587c298717…
Major
arnold-cwsac-commanders, battle MO015, belligerent US, fullname Emory S. Foster; column rank · snapshot 6c587c298717…
In consequence of a jealousy in regard to rank no field officers were sent with me
or13-foster-lone-jack-selections-v1, p.238 (OCR page markers; not checked against print) · snapshot c55466f47312…
Lieutenant Develin, being drunk, acted very badly, and was arrested
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
Captain Brawner was then in command.
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
Cock- rell, who commanded the rebels in the fight
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
Colonel Cockrell, who had been in command of the rebel forces engaged
britton-border-1-boston-mountains-selections-v1, p.332 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
The forces of Hays and Quantrill were to remain mounted and bring on the attack at daylight.
britton-border-1-boston-mountains-selections-v1, p.331 (the running head for p.331 reads "33 1" in OCR; OCR page markers; not checked against print) · snapshot 11df6cc34a75…

strength

unknownunresolved

No inspected return establishes matched personnel at a common opening boundary. Imported numerical estimates remain unchanged; this pass does not validate them as simultaneous opening forces.

disputedunresolved The frozen force field gives the Union 800 men in detachments from fourteen companies with a section of artillery, and the Confederates as unknown, with Union numeric bounds of 800 (minimum and maximum); the live field reads US 800 and CS 0. Foster says he was ordered to march with 800 men, found Coffee 1,600 strong on the 15th, had about 740 on the 16th after two parties were out, faced about 3,000 advancing, and saw Coffee return with about 1,500. Britton gives Foster's force as 806, Coffey's as at least 1,200 (and 1,200 on his return), the combined enemy as not less than 3,000 against 740, and cites Jackman's report that he entered the battle with 500 men.

An ordered strength, a morning remainder and Union estimates of the enemy; Britton's regimental extrapolation is his own. None is adopted as a matched opening strength. The live CS zero is not measured absence.

Detachments from fourteen companies of cavalry and a section of artillery (800 men) [US]; unknown [CS]
arnold-cwsac-battles, battle MO015; column forces_text · snapshot 952b5d08402a…
800
arnold-cwsac-forces, battle MO015, belligerent US; column strength_min · snapshot a462f6be964b…
800
arnold-cwsac-forces, battle MO015, belligerent US; column strength_max · snapshot a462f6be964b…
800 total (US 800; CS 0;)
nps-mo015-v1, Forces Engaged · snapshot 44069e5ee762…
to march at daylight in the direction of Lone Jack, with 800 men.
or13-foster-lone-jack-selections-v1, p.238 (OCR page markers; not checked against print) · snapshot c55466f47312…
the enemy, 1,600 strong, were at Lone Jack, under Coffee
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
leaving us about 740 men.
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
the enemy were advancing, about 3,000 strong.
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
Coffee came in sight with about 1,500 men
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
Major Foster's force of eight hundred and six men
britton-border-1-boston-mountains-selections-v1, p.327 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
was encamped with a force of at least twelve hundred men
britton-border-1-boston-mountains-selections-v1, p.328 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
of not less than three thousand men, with his little command of seven hundred and forty men.
britton-border-1-boston-mountains-selections-v1, p.331 (the running head for p.331 reads "33 1" in OCR; OCR page markers; not checked against print) · snapshot 11df6cc34a75…
Colonel Jackman reported that he went into the battle with five hundred men
britton-border-1-boston-mountains-selections-v1, p.334 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
five hundred men to the regiment would be a low estimate
britton-border-1-boston-mountains-selections-v1, p.335 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…

terrain

supportedunresolved Foster says a thick hedge protected both flanks and partly the front, with a small deep stream behind whose crossing he held. Britton describes the camp in an open square hedged on three sides, accessible from corn fields east and west, and says the position was not well chosen for receiving an attack nor intended to be; the attackers met a rail fence about forty yards out.

Ground described by an interested report and a participant history; the camp was chosen the night before. Phase unresolved.

by reason of a thick hedge, which protected us on each flank and afforded some protection to our front, our rear being protected by a small, deep stream, the crossing of which we held.
or13-foster-lone-jack-selections-v1, p.239 (OCR page markers; not checked against print) · snapshot c55466f47312…
which had a dots d'arc hedge on the north, east, and south sides of it.
britton-border-1-boston-mountains-selections-v1, p.329 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
His position was not a well- chosen one for receiving an attack, nor was it so in- tended.
britton-border-1-boston-mountains-selections-v1, p.329 (OCR page markers; not checked against print) · snapshot 11df6cc34a75…
they encountered a rail fence running parallel with their line
britton-border-1-boston-mountains-selections-v1, p.331 (the running head for p.331 reads "33 1" in OCR; OCR page markers; not checked against print) · snapshot 11df6cc34a75…

Open questions