The Armitage Files
The SS Cordelia was an independent cargo ship operating out of Kingsport in the late teens. Her last captain was a US Navy veteran named Kenney, and the first mate was Lem Finlayson.
According to Finlayson, the Cordelia strayed a little too close to Devil Reef on one 1919 voyage and a pair of ships belonging to the Marsh family chased them away. Shortly thereafter the ship was attacked by a sea monster of some sort — something with a huge snake-like head and long claws that raked the hull of the ship, leaving long scratches in the wood. After stopping in at Dixon, the ship seemed “cursed” and Finlayson quit when the ship next docked (in Newburyport). The Cordelia sailed on without him and was never seen again.