Beaver Dam Creek VA016

1862-06-26 to 1862-06-26 · VA · Peninsula Campaign [March-July 1862] · frozen result: Union · NPS summary (as listed)

CWSAC description
Second of the Seven Days' Battles. Gen. Robert E. Lee initiated his offensive against McClellan's right flank north of the Chickahominy River. A.P. Hill threw his division, reinforced by one of D.H. Hill's brigades, into a series of futile assaults against Brig. Gen. Fitz John Porter's V Corps, which was drawn up behind Beaver Dam Creek. Confederate attacks were driven back with heavy casualties. Jackson's Shenandoah Valley divisions, however, were approaching from the northwest, forcing Porter to withdraw the next morning to a position behind Boatswain Creek just beyond Gaines' Mill.

Command responsibility (ledger v2)

US: Fitz John Porter

Grade A under rule 2; echelon corps_or_wing.

A cited passage states the command.

Brigadier General
arnold-cwsac-commanders, battle VA016, belligerent US, fullname Fitz John Porter; column rank · snapshot 6c587c298717…
Brig. Gen. Fitz John Porter's V Corps, which was drawn up behind Beaver Dam Creek
arnold-cwsac-battles, battle VA016; column description · snapshot 952b5d08402a…

Confederate: Robert E. Lee

Grade A under rule 2; echelon army.

A cited passage states the command.

General
arnold-cwsac-commanders, battle VA016, belligerent Confederate, fullname Robert E. Lee; column rank · snapshot 6c587c298717…
Gen. Robert E. Lee initiated his offensive
arnold-cwsac-battles, battle VA016; column description · snapshot 952b5d08402a…

Side strength (ledger v3)

US: grade B, 15,630 (13,290–17,980)

basis_mixedcompiled_dependencederivation_unknownsingle_inputwhole_engagement_leakage

InputClassPrintedBasisBoundCodesPassage
us-cwA15,631reported_engagedderivation_unknown
15,631
arnold-cwsac-forces, battle VA016, belligerent US; column description · snapshot a462f6be964b…
us-npsA15,631reported_engagedderivation_unknowndossier claim reported-force-scope
us-lvA15,631reported_effective
Effectives estimated at 93 per cent. 15,631
livermore-transcription-v1, p.82 (page image livermore-p82-image-v1) · snapshot e9fc742fdcb6…

Confederate: grade B, 16,360 (13,900–18,810)

basis_mixedcompiled_dependencederivation_unknownsingle_inputwhole_engagement_leakage

InputClassPrintedBasisBoundCodesPassage
cs-cwA16,356reported_engagedderivation_unknown
16,356
arnold-cwsac-forces, battle VA016, belligerent Confederate; column description · snapshot a462f6be964b…
cs-npsA16,356reported_engagedderivation_unknowndossier claim reported-force-scope
cs-lvA16,356reported_effective
Effectives, June 26 16,356
livermore-transcription-v1, p.82 (page image livermore-p82-image-v1) · snapshot e9fc742fdcb6…

Dossier claims

Draft dossier, revision . 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 the commanders’ contemporary knowledge. Retrospective explanations of beliefs, surprise or missed opportunities are not independently verified information states.

logistics

unknownunresolved

No inspected battle-specific supply, ammunition or transport return establishes logistical sufficiency or readiness. Formation lists and retrospective praise are not numerical readiness measures.

objectives

supportedunresolved NPS describes Lee initiating an offensive against McClellan’s right flank north of the Chickahominy.

Attributed operational objective; no original order or quantified expected effect was inspected.

Gen. Robert E. Lee initiated his offensive against McClellan's right flank north of the Chickahominy River.
nps-va016-v1, Description · snapshot 5c0de4e267d7…

outcome

supportedpost_outcome NPS describes Confederate attacks being repulsed followed by Porter withdrawing the next morning as Jackson approached.

A recorded Union victory and later withdrawal coexist; do not recode one from the other or score the subsequent position as another win.

Confederate attacks were driven back with heavy casualties.
nps-va016-v1, Description · snapshot 5c0de4e267d7…
forcing Porter to withdraw the next morning
nps-va016-v1, Description · snapshot 5c0de4e267d7…

supportedpost_outcome The frozen result remains Union victory.

Retain the frozen outcome and engagement interval. A tactical result, later retreat, success at a local sector and campaign contribution are different measures. No causal effect, half-win or extra independent victory is inferred.

Union victory
arnold-cwsac-battles, battle VA016; column results_text · snapshot 952b5d08402a…
Union Victory
nps-va016-v1, Results · snapshot 5c0de4e267d7…

disputedpost_outcome The frozen casualty text reads 1,700 total (US 400; CS 1,300). The live NPS table reads 1845 total (US 361; CS 1484;).

Preserve source versions and population boundaries. No original return was inspected to reconcile totals, categories, missing side breakdowns or reporting cutoffs. A zero display is not no losses; casualties and captured hospital populations are not opening strength. Do not add overlapping battle/component totals.

1,700 total (US 400; CS 1,300)
arnold-cwsac-battles, battle VA016; column casualties_text · snapshot 952b5d08402a…
1845 total (US 361; CS 1484;)
nps-va016-v1, Estimated Casualties · snapshot 5c0de4e267d7…

responsibility

supportedunresolved NPS assigns the assaults to A. P. Hill reinforced by a D. H. Hill brigade. Webb identifies Meade’s brigade as a reserve at McCall’s position.

Distinguish Lee’s overall command, divisional action and local reserve roles from automatic outcome credit.

A.P. Hill threw his division, reinforced by one of D.H. Hill's brigades
nps-va016-v1, Description · snapshot 5c0de4e267d7…
The Second Bri- gade (Meade's) was held in reserve
webb-peninsula-selections-v1, p.125 (OCR page markers; not checked against print) · snapshot 3be92161e849…

strength

unknownunresolved

No inspected return establishes matched personnel at a common opening boundary. The imported numerical force estimates retain their original basis; they are not newly validated as opening counts.

supportedunresolved The frozen force field reads 31,987 total (US 15,631; CS 16,356); the live NPS table reads 31987 total (US 15631; CS 16356;).

These are source fields, not matched opening returns. Preserve vessel versus personnel units, unspecified formations and combined versus side totals. Shared NPS/CWSAC provenance supplies no independent confirmation; displayed zeros are not measured absence.

31,987 total (US 15,631; CS 16,356)
arnold-cwsac-battles, battle VA016; column forces_text · snapshot 952b5d08402a…
31987 total (US 15631; CS 16356;)
nps-va016-v1, Forces Engaged · snapshot 5c0de4e267d7…

terrain

supportedunresolved Webb describes McCall’s position along Beaver Dam Creek, with rifle pits and an artillery emplacement near the crossing.

Natural setting and constructed defenses remain distinct; no inherited/created feature is admitted without a replacement boundary.

its front on the left bank of Beaver Dam Creek
webb-peninsula-selections-v1, p.125 (OCR page markers; not checked against print) · snapshot 3be92161e849…
rifle-pits were dug in front of each regiment
webb-peninsula-selections-v1, p.125 (OCR page markers; not checked against print) · snapshot 3be92161e849…

Open questions