SS Marquette & Bessemer No. 2 — 1909 Bayesian drift hindcast

Rust cesarops-drift-core::hindcast reconciles the 07:10 chronometer foundering seed with the Erie lifeboat #4, the Long Point raft, and the far-east vested floaters under the NE-setting SW gale, over a multi-day timeline. One systemic scenario is applied to every hit; the posterior yields a unified resting place. Land endpoints are rejected by the ported water mask, and up-gale finds (Port Burwell, Conneaut) are dropped with a physical reason.

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