Mount Zion Church MO010

1861-12-28 to 1861-12-28 · MO · Operations in Northeast Missouri [December 1861] · frozen result: Union · NPS summary (as listed)

CWSAC description
Brig. Gen. Benjamin M. Prentiss led a Union force of 5 mounted companies and 2 companies of Birge's sharpshooters into Boone County to protect the North Missouri Railroad and overawe secessionist sentiment there. After arriving in Sturgeon on December 26, Prentiss learned of a band of Rebels near Hallsville. He sent a company to Hallsville the next day that fought a Confederate force under the command of Col. Caleb Dorsey and suffered numerous casualties, including many taken prisoner, before retreating to Sturgeon. On the 28th, Prentiss set out with his entire force to meet Dorsey's Rebels. He routed one company of Confederates on the road from Hallsville to Mount Zion and learned that the rest of the force was at Mount Zion Church. Prentiss headed for the church. After a short battle, the Confederates retreated, leaving their killed and wounded on the battlefield and abandoning many animals, weapons, and supplies. This action and others curtailed Rebel recruiting activities in Central Missouri.

Command responsibility (ledger v2)

US: Benjamin M. Prentiss

Grade A under rule 2; echelon unknown.

Rule 2, single listing. Prentiss marched with his whole force and directed the attack (Glover and Birge commanded parts). Halleck, the department commander, directed the campaign from St. Louis (Britton); departmental, not labelled.

Brigadier General
arnold-cwsac-commanders, battle MO010, belligerent US, fullname Benjamin M. Prentiss; column rank · snapshot 6c587c298717…
On the 28th, Prentiss set out with his entire force to meet Dorsey's Rebels.
arnold-cwsac-battles, battle MO010; column description · snapshot 952b5d08402a…
I immediately ordered five troops of cavalry, Col. John M. Glover commanding, and five companies of Sharpshooters.
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Confederate: Caleb Dorsey

Grade A under rule 2; echelon unknown.

Rule 2, single listing. The frozen description ('Dorsey's Rebels') puts the force met on the 28th under Dorsey. Britton puts the force under Dorsey on December 27 (Howland's skirmish near Hallsville, outside the interval); Prentiss's OCR reads 'Colonel Horsey' for that action. A company under Captain Johnson met Prentiss first on the 28th (subordinate context).

Colonel
arnold-cwsac-commanders, battle MO010, belligerent Confederate, fullname Caleb Dorsey; column rank · snapshot 6c587c298717…
Prentiss set out with his entire force to meet Dorsey's Rebels
arnold-cwsac-battles, battle MO010; column description · snapshot 952b5d08402a…
Colonel Dorsey threw for- ward a superior force to attack him.
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Side strength (ledger v3)

US: grade A, 440 (420–490)

basis_mixedcompiled_dependencederivation_unknownwhole_engagement_leakage

InputClassPrintedBasisBoundCodesPassage
us-cwA440reported_engagedderivation_unknowndossier claim reported-force-scope
us-prentiss-470B470unknowndossier claim reported-force-scope
us-britton-470B470unknowndossier claim reported-force-scope

Confederate: grade C, 680 (450–900)

basis_mixedopponent_estimate_pointsingle_inputwhole_engagement_leakage

InputClassPrintedBasisBoundCodesPassage
cs-prentiss-900bound900unknownupperadversary_or_hearsay_estimateone_sided_bounddossier claim reported-force-scope
cs-britton-900C900unknownadversary_or_hearsay_estimatedossier claim reported-force-scope

Dossier claims

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

information

supportedunresolved Prentiss sent a troop to reconnoitre near Hallsville on the 27th, and learned the enemy's numbers and position from prisoners taken on the road on the 28th.

Knowledge attributed in an interested report and a history based on it.

I sent forward one troop of cavalry, commanded by
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from whom 1 learned the number and position of the main force.
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logistics

supportedunresolved Prentiss marched 16 miles from Sturgeon before contact, collected wagons for his wounded and returned to Sturgeon the same evening; he took 90 horses and 105 stand of arms.

March and evacuation from an interested report; not a return.

after marching a distance of 16 miles
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I collected wagons, made our own wounded as comfort able as possible, and at 4 p. m. started for Sturgeon, where we arrived at 9 p. m.
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leaving in our hands 90 horses and 105 stand oj arms.
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objectives

supportedunresolved Britton says Halleck directed Prentiss to open a vigorous campaign against the Southern forces of North Missouri and that Prentiss determined to break up their organization; Prentiss says he moved in pursuance of general orders.

Aims from a history and an interested report.

directed General Prentiss, commanding the district of North Missouri to commence at once a vigorous cam- paign against the Southern forces of that section.
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General Prentiss determined to check their operations, and break up their organization as speedily as possible.
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In pursuance of general orders
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outcome

supportedpost_outcome The frozen result reads Union victory. Prentiss says the rebels retreated and his victory was complete by about 11 a.m.; Britton says they were driven off in the greatest disorder, leaving their dead and wounded.

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 MO010; column results_text · snapshot 952b5d08402a…
The rebels could not stand the tire of oui rifles and retreated
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our victory was complete.
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the secessionists were driven from the field in the greatest disorder, leaving their dead and wounded on the ground.
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disputedpost_outcome The frozen casualty text reads 282 (US 72; CS 210). Prentiss reports 3 killed, 17 severely and 46 slightly wounded for Mount Zion and the previous evening's skirmish together, and enemy losses of 25 killed and 150 wounded, with 30 prisoners taken; Britton repeats these figures.

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. Prentiss's Union figures include the December 27 skirmish near Hallsville and must not be assigned to this record alone.

282 total (US 72; CS 210)
arnold-cwsac-battles, battle MO010; column casualties_text · snapshot 952b5d08402a…
Our loss in the battle of Mount Zion and in the engagement of th€ evening previous is as follows: Killed, 3: severely wounded, 17 : slightly wounded, 46. Rebel loss: Killed, 25; wounded', 150.
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having taken 30 prisoners from them
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The casualties on the Federal side as reported by Gen- eral Prentiss were 3 killed, 17 severely wounded, and 46 slightly wounded.
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responsibility

supportedunresolved The frozen commanders are Colonel Caleb Dorsey (read 'Horsey' in OCR) and Brigadier General Benjamin M. Prentiss. Prentiss directed the attack; he says Glover moved at the double-quick to support the three engaged companies and the two reserve companies came in as the enemy gave way.

Command roles from an interested report; no Confederate account was inspected and there is no automatic sole credit.

Colonel
arnold-cwsac-commanders, battle MO010, belligerent Confederate, fullname Caleb Dorsey; column rank · snapshot 6c587c298717…
Brigadier General
arnold-cwsac-commanders, battle MO010, belligerent US, fullname Benjamin M. Prentiss; column rank · snapshot 6c587c298717…
manded by Colonel Horsey
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Colonel Glover, with his available force, moved in double quick to the aid of the three companies engaged
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The reserve of two companies coming into action at the moment the enemy gave way
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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 detachments of the 3rd Missouri Cavalry (about 240) and Birge's Sharpshooters (about 200), 440 in the forces table, and an unknown Confederate force; the frozen description says 5 mounted companies and 2 companies of sharpshooters. Prentiss says five troops of cavalry and five companies of sharpshooters numbering 470 marched, and that prisoners put the enemy near 900. Britton gives the same 470 and nine hundred.

Prentiss's marching force and his prisoners' estimate; the company counts in the frozen description and the report differ. None is adopted as a matched opening strength.

Detachments of the 3rd Missouri Cavalry Regiment (approx. 240) and Birge's Sharpshooters (approx. 200) [US]; unknown [CS]
arnold-cwsac-battles, battle MO010; column forces_text · snapshot 952b5d08402a…
440
arnold-cwsac-forces, battle MO010, belligerent US; column strength_max · snapshot a462f6be964b…
a Union force of 5 mounted companies and 2 companies of Birge's sharpshooters
arnold-cwsac-battles, battle MO010; column description · snapshot 952b5d08402a…
five troops of cavalry, Col. John M. Glover commanding, and five companies of Sharpshooters. Colonel Birge commanding, numbering in all 470
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numbering near 900 men
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His whole force numbered four hundred and seventy men.
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the secessionists were nine hun- dred strong
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terrain

supportedunresolved Prentiss says the enemy was posted at the church a mile and a half ahead, and that sharpshooters went through a field on his right to drive them from the woods.

Ground described by an interested report; no map verification.

The enemy being posted at a church and place known as Mount Zion, in Boone County, and one mile and a half in advance
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through a field on our right to skirmish with the enemy’s left, and, if possible, drive them from the woods.
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Open questions