Port Republic VA106
1862-06-09 to 1862-06-09 · VA · Jackson's Valley Campaign [March-June 1862] · frozen result: Confederate · NPS summary (as listed)
Maj. Gen. T.J. Jackson concentrated his forces east of the South Fork of the Shenandoah against the isolated brigades of Tyler and Carroll of Shields's division, Brig. Gen. Erastus Tyler commanding. Confederate assaults across the bottomland were repulsed with heavy casualties, but a flanking column turned the Union left flank at the Coaling. Union counterattacks failed to reestablish the line, and Tyler was forced to retreat. Confederate forces at Cross Keys marched to join Jackson at Port Republic burning the North River Bridge behind them. Frémont's army arrived too late to assist Tyler and Carroll and watched helplessly from across the rain-swollen river. After these dual defeats at Cross Keys and Port Republic, the Union armies retreated, leaving Jackson in control of the upper and middle Shenandoah Valley and freeing his army to reinforce Lee before Richmond.
Command responsibility (ledger v2)
US: Erastus Tyler
Grade A under rule 2; echelon unknown.
A cited passage states the command.
Brigadier Generalarnold-cwsac-commanders, battle VA106, belligerent US, fullname Erastus Tyler; column rank · snapshot
6c587c298717…Confederate: Thomas J. Jackson
Grade A under rule 2; echelon army.
A cited passage states the command.
Major Generalarnold-cwsac-commanders, battle VA106, belligerent Confederate, fullname Thomas J. Jackson; column rank · snapshot
6c587c298717…Maj. Gen. T.J. Jackson concentrated his forces east of the South Fork of the Shenandoaharnold-cwsac-battles, battle VA106; column description · snapshot
952b5d08402a…Side strength (ledger v3)
US: grade A, 3,500 (3,330–3,680)
compiled_dependencederivation_unknownsingle_inputwhole_engagement_leakage
| Input | Class | Printed | Basis | Bound | Codes | Passage |
|---|---|---|---|---|---|---|
| us-cw | A | 3,500 | reported_engaged | derivation_unknown | ||
| us-nps | A | 3,500 | reported_engaged | derivation_unknown | dossier claim reported-force-scope |
Confederate: grade A, 6,000 (5,700–6,300)
compiled_dependencederivation_unknownsingle_inputwhole_engagement_leakage
| Input | Class | Printed | Basis | Bound | Codes | Passage |
|---|---|---|---|---|---|---|
| cs-cw | A | 6,000 | reported_engaged | derivation_unknown | 6,000arnold-cwsac-forces, battle VA106, belligerent Confederate; column description · snapshot a462f6be964b… | |
| cs-nps | A | 6,000 | reported_engaged | derivation_unknown | dossier claim reported-force-scope |
Dossier claims
Draft dossier, revision valley-review-correction-2026-09-20. Claims are extraction records with their quoted passages, not historical adjudication. JSON
information
unknownunresolved
No original reconnaissance, order or message chain was inspected to establish contemporary knowledge. Surprise in a summary does not independently establish what each commander knew.
logistics
supportedunresolved Allan says a defective footbridge delayed the crossing and that Jackson attacked with Winder before the remainder had arrived.
An approach constraint and changing troop population, not an opening readiness score. Later concentration cannot be treated as strength available at the first attack.
The foot-bridge was defective, and a good deal of time was lost in getting the troops over.allan-valley-selections-v1, p.158 (OCR page markers; not checked against print) · snapshot
08a742ed11b5…without Avaiting for the remainder of his forces, ordered an attack upon Tyler as soon as Winder had reached the vicinity of the Federals.allan-valley-selections-v1, p.158 (OCR page markers; not checked against print) · snapshot
08a742ed11b5…objectives
supportedunresolved NPS describes Jackson concentrating against Tyler and Carroll’s isolated brigades.
Immediate objective and opponent, not proof of complete destruction or measured campaign contribution.
against the isolated brigades of Tyler and Carrollnps-va106-v1, Description · snapshot
65db5af36912…outcome
supportedunresolved NPS reports Confederate troops moving from Cross Keys to Port Republic and burning the North River Bridge behind them.
The related June 8 and June 9 engagements remain separate frozen records with changing populations. The cited transfer and bridge burning are not established as occurring after Port Republic’s outcome; precise timing remains unresolved. Shared troops are not independent army observations, and campaign success is not an extra victory credited to both.
Confederate forces at Cross Keys marched to join Jackson at Port Republic burning the North River Bridge behind them.nps-va106-v1, Description · snapshot
65db5af36912…supportedpost_outcome The frozen result remains Confederate victory.
Retain the original result and engagement interval; later movements and campaign contribution are different measures. No new probabilities or individual causal credit.
disputedpost_outcome The frozen casualty text reads 1,818 total (US 1,002; CS 816). The live NPS field reads 1800 total (US 1000; CS 800;).
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.
1,818 total (US 1,002; CS 816)arnold-cwsac-battles, battle VA106; column casualties_text · snapshot
952b5d08402a…responsibility
supportedunresolved NPS identifies Tyler as commanding the brigades of Shields’s division opposed to Jackson.
Local command, parent division and army command are distinct; Shields’s name does not establish his presence or equal outcome credit.
of Shields's division, Brig. Gen. Erastus Tyler commanding.nps-va106-v1, Description · snapshot
65db5af36912…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.
supportedunresolved The frozen force field reads 9,500 total (US 3,500; CS 6,000). The live NPS field reads 9500 total (US 3500; CS 6000;).
Source field only. Formations, engaged troops and changing concentrations do not establish matched opening populations. Live zeros are not measured absence; shared provenance is not independent corroboration.
9,500 total (US 3,500; CS 6,000)arnold-cwsac-battles, battle VA106; column forces_text · snapshot
952b5d08402a…terrain
supportedunresolved NPS describes assaults over bottomland and a flanking movement at the Coaling.
Attributed local geography and maneuver, not a verified terrain coefficient or reconstruction of every approach.
a flanking column turned the Union left flank at the Coaling.nps-va106-v1, Description · snapshot
65db5af36912…Open questions
- Original orders, returns, casualty reconciliation, contemporary message chains and precise command clocks remain deferred after the bounded pass. No whole-book, facsimile or map verification is claimed.
- NPS/CWSAC is one family; Allan is one interested retrospective history where used. Embedded reports are not additional independently inspected families. Princeton retains only the frozen NPS/CWSAC family.
- No automatic commander attribution, causal campaign score, morale/readiness number or battle/campaign double counting.