St. John's Bluff FL003

supportedunresolved Hopkins watched the landing from the batteries with a glass and relied on Chambers's and a civilian's estimates; Brannan calls local statements of Confederate strength conflicting and unreliable, and says he learned at Jacksonville that the evacuation began right after his men surprised the pickets near Mount Pleasant Creek.

Contemporary estimates by both commanders, neither verified. 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.

supportedunresolved Hopkins says he had warned that small-arms ammunition would last no more than an hour's close fight, that Chambers's ammunition was damaged by rain, and that Dunham's artillery could not come because its horses were at a distance and caissons not with the pieces. Brannan says the alternative to landing up the creeks was a march of nearly 40 miles without land transportation, and that the batteries were found loaded and well supplied with ammunition.

Statements in the two commanders' reports; no ordnance or supply return inspected.

supportedunresolved Brannan's force was to operate against the batteries at St. John's Bluff; he landed infantry at Buckhorn Creek to establish a position at the head of Mount Pleasant Creek, in rear of the bluff. Hopkins decided, after a conference of officers, that the batteries could not be held against the force in his rear.

Stated aims and decisions from the two reports.

supportedpost_outcome The frozen and live results read Union victory. Hopkins says the post was abandoned at 9 p.m.; Brannan says the batteries were found evacuated by the gunboats on the 3d and occupied, and that the guns were removed and the works destroyed; NPS says Hopkins abandoned the position after dark.

Retain the original result and engagement interval; later movements and campaign contribution are different measures. No new probabilities or individual causal credit.

supportedpost_outcome The frozen casualty text reads Unknown; the live field reads zero. Brannan says the skirmishing guerrillas did his force no injury; neither inspected report gives a casualty figure.

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. Frozen 'Unknown' and a live zero are not the same statement.

disputedunresolved Brannan commanded the expedition and ordered Colonel Good forward with the infantry; he credits Captain Steedman's gunboats. Hopkins, commanding the post, ordered the evacuation after conferences at the batteries and among Brevard's captains; in December he answered Finegan's charge that he had failed to reconnoitre, and explained why he had not spiked the guns. The frozen commanders are Brigadier General John M. Brannan (US) and Lieutenant Colonel Charles F. Hopkins (CS).

Command roles from the two reports. Finegan's indorsement blaming Hopkins was read but not selected; the dispute is visible through Hopkins's reply. No listed commander receives automatic sole credit.

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 US bound is 1,573 (two infantry regiments, a light battery section and a cavalry detachment); the CS force is described only as small. Brannan's October 13 report gives effective strengths of 825 (47th Pennsylvania), 647 (7th Connecticut), 41 (1st Connecticut Battery section) and 60 (1st Massachusetts Cavalry), total printed '1 573'; NPS describes 'about 1,500 infantry'. Brannan says local statements put the Confederates at 1,200 cavalry and infantry with the batteries, and that 300 men from Fernandina joined him on the 4th. Hopkins says his force in rear of the batteries did not exceed 500 including a detachment of 45 from the batteries, that about 110 dismounted cavalry reached him, and that the enemy landed 3,000 by one report, 2,500 in the main column by Chambers's estimate, and at least 1,000 more after Chambers fell back by his own reckoning.

The frozen 1,573 matches Brannan's printed effective total at embarkation; the other figures are mutual estimates made during the action. None is adopted as a matched opening strength.

supportedunresolved Brannan says the country between Mayport Mills and the bluff was cut by impassable swamps and unfordable creeks, and that the bluff position was of great strength, approachable by land by one route through a winding ravine under its guns, with a narrow channel below. Hopkins says the batteries' guns gave no protection to the rear.

Ground described by the opposing commanders; no map verification. The works predate the action.