Oak Grove VA015

1862-06-25 to 1862-06-25 · VA · Peninsula Campaign [March-July 1862] · frozen result: Inconclusive · NPS summary (as listed)

CWSAC description
Oak Grove was the first of the Seven Days' battles. On June 25, Maj. Gen. George B. McClellan advanced his lines along the Williamsburg Road with the objective of bringing Richmond within range of his siege guns. Union forces attacked over swampy ground with inconclusive results, and darkness halted the fighting. McClellan's attack was not strong enough to derail the Confederate offensive that already had been set in motion. The next day, Lee seized the initiative by attacking at Beaver Dam Creek north of the Chickahominy.

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 gives the objective as bringing Richmond within range of McClellan’s siege guns.

A source-described purpose, not a measured range calculation or validated counterfactual.

bringing Richmond within range of his siege guns.
nps-va015-v1, Description · snapshot c8ddb953470d…

outcome

disputedpost_outcome Webb describes occupying the position and posting pickets within four miles of Richmond; the frozen result says Union forces withdrew to their lines.

Retain the different descriptions of local gain and final disposition without silently resolving phase or scope. The frozen Inconclusive code stays unchanged.

occupied the position, throw- ing out pickets within four miles of Richmond.
webb-peninsula-selections-v1, p.120 (OCR page markers; not checked against print) · snapshot 3be92161e849…
Inconclusive (Union forces withdrew to their lines.)
arnold-cwsac-battles, battle VA015; column results_text · snapshot 952b5d08402a…

supportedpost_outcome The frozen result remains Inconclusive (Union forces withdrew to their lines.).

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.

Inconclusive (Union forces withdrew to their lines.)
arnold-cwsac-battles, battle VA015; column results_text · snapshot 952b5d08402a…
Indecisive
nps-va015-v1, Results · snapshot c8ddb953470d…

disputedpost_outcome The frozen casualty text reads 1,057 total (US 516; CS 541). The live NPS table reads 1067 total (US 626; CS 441;).

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.

1,057 total (US 516; CS 541)
arnold-cwsac-battles, battle VA015; column casualties_text · snapshot 952b5d08402a…
1067 total (US 626; CS 441;)
nps-va015-v1, Estimated Casualties · snapshot c8ddb953470d…

responsibility

supportedunresolved Webb names Heintzelman’s corps, part of Sumner’s and Palmer’s brigade of Keyes’s corps in the advance.

Formation participation is not an equal allocation of credit; original orders and command intervals remain uninspected.

Heintzelrnan's corps, part of Sumner's, and Palmer's brigade of Keyes' corps
webb-peninsula-selections-v1, p.120 (OCR page markers; not checked against print) · snapshot 3be92161e849…

strength

unknownunresolved

No inspected return establishes matched personnel at a common opening boundary. The frozen side-specific numerical bounds are blank; zero displays, vessel lists, combined army totals and later casualties cannot fill them.

disputedunresolved The frozen force field reads Corps; the live NPS table reads 0 total (US 0; CS 0;).

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.

Corps
arnold-cwsac-battles, battle VA015; column forces_text · snapshot 952b5d08402a…
0 total (US 0; CS 0;)
nps-va015-v1, Forces Engaged · snapshot c8ddb953470d…

terrain

supportedunresolved NPS describes attacks over swampy ground; Webb places a small stream within a heavily timbered approach.

Attributed physical setting rather than an admitted terrain score.

Union forces attacked over swampy ground
nps-va015-v1, Description · snapshot c8ddb953470d…
a heavily timbered piece of ground, through the middle of which ran a small stream
webb-peninsula-selections-v1, p.120 (OCR page markers; not checked against print) · snapshot 3be92161e849…

Open questions