Darbytown & New Market Roads VA077
1864-10-07 to 1864-10-07 · VA · Richmond-Petersburg Campaign [June 1864-March 1865] · frozen result: Union · NPS summary (as listed)
Responding to the loss of Fort Harrison and the increasing Federal threat against Richmond, Gen. Robert E. Lee directed an offensive against the Union far right flank on October 7. After routing the Federal cavalry from their position covering Darbytown Road, Field's and Hoke's divisions assaulted the main Union defensive line along New Market Road and were repulsed. Confederate Gen. John Gregg of the Texas brigade was killed. The Federals were not dislodged, and Lee withdrew into the Richmond defenses.
Command responsibility (ledger v2)
US: August Kautz
Grade A under rule 3a; echelon unknown.
Other candidates: David Birney
Kautz (Brigadier General) and Birney (Major General) are listed. Humphreys says Kautz, with 1,700 men and two batteries, held the Darby road and was attacked at sunrise by Field, the first combat; 'the Tenth Corps', moving out to his assistance, later repulsed Field (rule 3(a)). No inspected passage names the Tenth Corps' commander, places Kautz under Birney or names an overall commander, so no command change is recorded. Birney is a candidate; rule 3(b) would have given Birney. Humphreys's 'the right of the force on the north side of the James' implies a larger force whose commander no inspected passage names for October 7, so grade C would also be defensible.
Brigadier Generalarnold-cwsac-commanders, battle VA077, belligerent US, fullname August Kautz; column rank · snapshot
6c587c298717…Major Generalarnold-cwsac-commanders, battle VA077, belligerent US, fullname David Birney; column rank · snapshot
6c587c298717…Kautz, with 1,700 men and two batteries, looking out from the right of the force on the north side of the James, held the Darby roadhumphreys-petersburg-selections-v1 · snapshot
fbc0249868bc…and at sunrise of the 7th Field ad¬ vanced upon him,humphreys-petersburg-selections-v1 · snapshot
fbc0249868bc…getting under cover of the Tenth Corps, which was moving out to his assistance,humphreys-petersburg-selections-v1 · snapshot
fbc0249868bc…Confederate: Robert E. Lee
Grade A under rule 2; echelon army.
Single CWSAC listing. The description says Lee directed the offensive, and Lee's dispatch from his headquarters reports it. Lee's dispatch says 'General Anderson to-day drove the enemy' and Humphreys has Field advance at sunrise; these are read as subordinates leading the attack (rule 2, second bullet), not as a contradiction: neither passage says the officer commanded the side's engaged forces, and the dispatch does not identify which Anderson (Humphreys also names Anderson's brigade in Field's attack). The live rank is not adopted.
Generalarnold-cwsac-commanders, battle VA077, belligerent Confederate, fullname Robert E. Lee; column rank · snapshot
6c587c298717…Gen. Robert E. Lee directed an offensive against the Union far right flank on October 7arnold-cwsac-battles, battle VA077; column description · snapshot
952b5d08402a…General Anderson to-day drove the enemy from his positionor42-1-lee-petersburg-selections-v1 · snapshot
a76186d88fd3…Side strength (ledger v3)
US: grade D: no usable figure (modelled in the rating runs)
whole_engagement_leakage
| Input | Class | Printed | Basis | Bound | Codes | Passage |
|---|---|---|---|---|---|---|
| us-kautz | bound | 1,700 | unknown | lower | partial_scope | dossier claim reported-force-scope |
Confederate: grade D: no usable figure (modelled in the rating runs)
whole_engagement_leakage
Dossier claims
Draft dossier, revision petersburg-review-correction-2026-09-25. 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
unknownunresolved
No battle-specific supply, ammunition or transport return was inspected. Retrospective descriptions are not readiness measures.
objectives
supportedunresolved Humphreys says Field and Hoke were brought over to drive Kautz from his threatening position; NPS says Lee directed an offensive against the Union far right in response to the loss of Fort Harrison.
Stated aims from an interested history and a summary.
To drive him from this threatening position,humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…Gen. Robert E. Lee directed an offensive against the Union far right flank on October 7.nps-va077-v1, Description · snapshot
5c578dc82ac9…outcome
disputedpost_outcome The frozen and live results read Union victory. Humphreys says Kautz was routed with the loss of eight guns but Field's attack on the Tenth Corps was repulsed; Lee says the enemy was driven to the New Market road, where he was not dislodged, and that guns, caissons, colors, horses and prisoners were taken.
Retain the original result and engagement interval; later movements and campaign contribution are different measures. No new probabilities or individual causal credit. The rout of the cavalry and the repulse at the main line are both retained.
and thus lost eight of his guns.humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…but was repulsed, and fell back to his intrenchments.humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…and was not dis- lodged.or42-1-lee-petersburg-selections-v1, p.852 (OCR page markers; not checked against print) · snapshot
a76186d88fd3…disputedpost_outcome The frozen casualty text reads 1,750 total and the live field 1,158 (US 458; CS 700). Humphreys gives Kautz's loss as eight guns, 72 killed and wounded and 202 missing, and names Gregg killed and Bratton wounded; Lee's dispatch said his loss was small and the enemy's unknown, and his correction gives 10 caissons, 2 colors, about 100 horses and over 100 prisoners (the gun count reads '0' in OCR).
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.
but losing, besides the guns, 72 killed and wounded, and 202 missing.humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…General Gregg, commanding the Texan brigade, a gallant commander of a gallant brigade, was killed,humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…Our loss said to be small; enemy’s not known.or42-1-lee-petersburg-selections-v1, p.852 (OCR page markers; not checked against print) · snapshot
a76186d88fd3…10 caissons, 2 stand of colors, about 100 horses, over 100 prisoners,or42-1-lee-petersburg-selections-v1, p.852 (OCR page markers; not checked against print) · snapshot
a76186d88fd3…responsibility
supportedunresolved Lee reports that General Anderson drove the enemy; Humphreys says Field attacked and that the Tenth Corps moved out to Kautz's assistance. Birney's personal direction is not described in the inspected passages. The frozen commanders are Lee (CS), Brigadier General Kautz and Major General Birney (US); the live page lists Kautz and 'Major General Robert Lee'.
Direction attributed as stated; the live rank is not adopted. No listed commander receives automatic sole credit.
General Anderson to-day drove the enemy from his positionor42-1-lee-petersburg-selections-v1, p.852 (OCR page markers; not checked against print) · snapshot
a76186d88fd3…and at sunrise of the 7th Field ad¬ vanced upon him,humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…getting under cover of the Tenth Corps, which was moving out to his assistance,humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…Generalarnold-cwsac-commanders, battle VA077, belligerent Confederate, fullname Robert E. Lee; column rank · snapshot
6c587c298717…Brigadier Generalarnold-cwsac-commanders, battle VA077, belligerent US, fullname August Kautz; column rank · snapshot
6c587c298717…Major Generalarnold-cwsac-commanders, battle VA077, belligerent US, fullname David Birney; column rank · snapshot
6c587c298717…strength
unknownunresolved
No inspected return establishes matched personnel at a common opening boundary. The frozen side-specific numerical strength bounds are blank (missing_numeric_strength). No figure in this pass is adopted as a simultaneous opening force.
supportedunresolved The frozen force field reads 'Corps' and the live field zero. Humphreys gives Kautz 1,700 men and two batteries, attacked by Field and Hoke with the larger part of their divisions, Field advancing with Anderson's and Bratton's brigades and Gary's cavalry, supported by Lane, around the flank.
One Union cavalry figure and Confederate formations. None is adopted as a matched opening strength; live zeros are not measured absence.
Kautz, with 1,700 men and two batteries,humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…Field and Hoke, with the larger part of their divi¬ sions,humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…with Anderson’s and Bratton’s brigades, while Gary’s cavalry, supported by. Lane,humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…terrain
supportedunresolved Humphreys says a swamp ran around Kautz's right and rear across the Darby road, so that falling back on the narrow road he met Gary's cavalry and lost eight guns, and that Field crossed dense swamps to attack the Tenth Corps; Lee says the enemy was found strongly intrenched on the New Market road.
Mixed claim: the swamps predate the action, but the loss of Kautz's guns arose during it and the Union works on the New Market road were recent, so the claim as a whole is not tagged inherited. No map verification.
There was a swamp on his right, which ran around his rear, cross¬ ing the Darby road.humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…through the dense swamps of one of the chief affluents of the White Oak Swamp,humphreys-petersburg-selections-v1, p.293 (OCR page markers; not checked against print) · snapshot
fbc0249868bc…where he was found strongly intrenched,or42-1-lee-petersburg-selections-v1, p.852 (OCR page markers; not checked against print) · snapshot
a76186d88fd3…Open questions
- Kautz's and Birney's reports (Volume XLII No. 335; Birney No. 250 covers other dates), the Tenth Corps brigade reports, Field's, Hoke's and Longstreet's reports and the compiled returns remain deferred.
- NPS/CWSAC (the live NPS page and the frozen Arnold rows) is one family. Humphreys' The Virginia Campaign of ’64 and ’65 (1883) is an interested history by the Army of the Potomac's chief of staff, later commander of its Second Corps, in the same author family as the registered From Gettysburg to the Rapidan; it relies on Meade's, Hancock's, Warren's, Burnside's, Parke's and Wilson's reports and quotes Lee's, Beauregard's and Gordon's despatches, so it is not independent of those families. Gillmore's, Meade's, Hancock's, Burnside's, Wilson's, Hampton's, Stannard's and Lee's papers, printed in Official Records Series I, Volumes XXXVI (Part 2), XL, XLII and XLVI (Part 1), are separate families of interested commanders' accounts; each volume is a shared container, not an additional witness. Lee's telegrams largely relay subordinates' reports. Report dates are not event times or proof of contemporary knowledge.
- No automatic commander attribution, causal campaign score, morale/readiness number or battle/campaign double counting.