Congress

Version 1.1. Metadata and presentation revised September 8, 2026; original evidence review retained.

Selected appearance

Early steam-freighter form, c.1861–1865. Early interpretation of the vessel originally named Detroit. A partial 1864 photograph informs limited cabin and funnel details, not the complete arrangement. NOAA’s 139 ft catalogue length sets scale; 25 ft beam is provisional. Two bare masts, hull lines and deck layout are inferred. The later 1868 oil-burning machinery is not reconstructed.

Documented evidence

NOAA lists an 1861 wooden propeller vessel, 139 ft long, lost in 1868. NOAA Thunder Bay condition report

Reasonable interpretation

Underwater hull lines and draft

Exact colors, fittings, hatch layout and rigging routes

This model depicts the early steam freighter associated with the later wreck name Congress. NOAA records an 1861 wooden propeller vessel with a 139 ft catalogue length, lost in 1868; the project worksheet rounds length to 140 ft. The model follows the NOAA 139 ft baseline, equivalent to 42.3672 m. NOAA Thunder Bay condition report, vessel table.

A surviving partial photograph hosted by Wikimedia Commons is captioned Congress, attributed to Brady and dated 1864, with its source identified as the Great Lakes Maritime Collection. The photographed vessel bears the name Detroit. It shows a pale cabin near a dark funnel, railings, rigging and cargo-access details. It is an oblique partial view among other vessels and dock equipment, so it cannot establish the full hull profile or count every mast. Historical photograph and catalogue attribution. The historical compilation identifies the vessel as built Detroit and renamed Congress in 1865; that name history explains the early photograph label. Great Lakes Shipwreck Files, Congress entry.

The forward steering house, low aft cabin, one funnel, two bare working masts, booms, two removable hatches, cargo-door recesses, vents, skylight, ship's boat, anchors and single screw are an interpretation. Only limited local cabin/funnel features are guided by the photograph. Colors, counts, stations, rigging and propeller shape are not established by a recovered plan. The dark side openings do not expose a modeled interior. No military guns, troop load, or undocumented full sailing rig are added.

NOAA discusses experimental petroleum firing in 1868 shortly before the loss. This early-form model does not reproduce the later oil-burning apparatus. NOAA archaeological-resource discussion. Its generic intact exterior cannot establish every change between 1861 and 1868.

Unresolved uncertainties

No complete original lines plan is claimed. Exact loaded draft, concealed surfaces and fine fittings remain interpreted. The earlier research context below retains the source distinctions used for this reconstruction.

The 25 ft (7.62 m) beam is provisional. A secondary compilation reports dimensions 138 x 25 x 12 ft, but an original enrollment verifying them was not recovered. Rather than treating that full set as verified measurements, the model retains NOAA's 139 ft length, uses 25 ft only as a provisional width and stores unknown hold depth as null. The model-spec labels beam as inferred. Hull height, underwater shape, sheer and waterline are chosen display geometry.

setHatches(boolean) controls hatch_covers, exposing simplified dark wells, not an interior restoration. No display sails. The source records and approximate marker remain unchanged. NOAA's 17 ft wreck-depth table differs from the worksheet's 15 ft; neither supplies the modeled draft. Identification of scattered North Point wreck material has archaeological uncertainty and this asset adds no new location or identification evidence.

Sources

• NOAA Thunder Bay condition report
• Congress / Detroit partial historical photograph
• Great Lakes Shipwreck Files: Congress
• NOAA archaeological resources

Illustration conditions

Lake, shoreline, lighting and weather are artistic staging, not evidence of a specific historical voyage. AI artwork is supplemental; the GLB and direct renders establish the delivered geometry.