{
  "title": "E.B. Allen",
  "era": "Two-masted canaller, 1864–1871",
  "version": "1.1",
  "modelStatus": "Interpretive reconstruction; no original lines plan recovered",
  "detailLevel": "full",
  "units": "metres",
  "axes": {
    "up": "+Y",
    "bow": "-X",
    "starboard": "+Z"
  },
  "historicalDimensions": {
    "lengthFeet": 134,
    "beamFeet": 26,
    "depthOfHoldFeet": null,
    "beamInferred": false,
    "holdDepthUnknown": true,
    "dimensionsSourceQuality": "NOAA catalogue"
  },
  "geometryReference": {
    "hullBowX": -20.4216,
    "hullSternX": 20.4216,
    "deckY": 3.65,
    "waterlineY": 2.55,
    "waterlineIsInferred": true
  },
  "bounds": {
    "min": [
      -27.38417800639648,
      0.0050000000000000044,
      -4.0474000000000006
    ],
    "max": [
      20.506600000000002,
      30.202957026438295,
      4.0474000000000006
    ]
  },
  "triangleCount": 57924,
  "trianglesByGroup": {
    "hull": 12950,
    "bulwarks": 9322,
    "fittings": 2844,
    "deck": 6484,
    "propulsion": 52,
    "anchors": 636,
    "deckhouses": 12,
    "cabin_roofs": 12,
    "windows": 72,
    "companionway": 24,
    "steering": 748,
    "cargo_hatches": 120,
    "hatch_covers": 264,
    "centerboard": 364,
    "spars": 6544,
    "standing_rigging": 2316,
    "sails": 11320,
    "running_rigging": 1536,
    "ship_boat": 1816,
    "canal_fittings": 488
  },
  "drawCalls": 57,
  "mastCount": 2,
  "supportsSails": true,
  "visibilityNodes": {
    "sails": "sails"
  },
  "deployedSailCount": 4,
  "inferredFeatures": [
    "The replacement flat transom is raked about 24 degrees, following canaller comparisons; E.B.Allen’s original stern is missing.",
    "Low aft cabin with three small lights per side, companionway, wheel and binnacle are period interpretations. Four display sails, topmasts, rigging, boat and fittings are not a recovered complete sail plan."
  ],
  "configurationCaveat": "Two-masted canaller, 1864–1871. Archaeology guides the hull and canal fittings; the missing flat raked transom, low cabin, steering gear and rig are comparisons with related canallers. No period portrait is known; hold depth and exact upper works remain unresolved.",
  "revisedDate": "2026-09-08",
  "revisionNote": "Corrected the September 2026 audit findings and distinguished documentary evidence, interpretation and unresolved conflicts.",
  "documentedFeatures": [
    "NOAA identifies a two-masted wooden schooner built by H.C. Piersons at Ogdensburg in 1864, with 134 ft wreck length and 26 ft beam; it sank after collision with Newsboy on November 20, 1871. [NOAA](https://thunderbay.noaa.gov/shipwrecks/eb_allen.html).",
    "Zant, Thomsen and Kiefer document straight sides, flat bottom, sharp bilges, plumb bow, centerboard, lifting bowsprit, split forecastle and hinged L-shaped catheads. Their report compares Walter B. Allen, built by the same shipwright, and Figure 31 guides surviving stations. [Sailing Canallers: A Great Lakes Regional Context, Technical Report 17-003, pp.39–40](https://www.wisconsinshipwrecks.org/Files/canaller-regional-context.pdf#page=45).",
    "In 1868 E.B.Allen collided with Persian off Presque Isle, sinking that schooner with all hands. [NOAA historical overview](https://sanctuaries.noaa.gov/science/condition/tbnms/history.html)."
  ],
  "sources": [
    {
      "title": "NOAA vessel record",
      "url": "https://thunderbay.noaa.gov/shipwrecks/eb_allen.html",
      "use": "See the cited evidence and uncertainty sections in the research notes."
    },
    {
      "title": "Zant, Thomsen and Kiefer, Sailing Canallers",
      "url": "https://www.wisconsinshipwrecks.org/Files/canaller-regional-context.pdf#page=45",
      "use": "See the cited evidence and uncertainty sections in the research notes."
    },
    {
      "title": "NOAA historical overview",
      "url": "https://sanctuaries.noaa.gov/science/condition/tbnms/history.html",
      "use": "See the cited evidence and uncertainty sections in the research notes."
    }
  ],
  "builder": "H.C. Piersons, Ogdensburg, 1864"
}