Trover cases in the United States.

Trover is the name of the action which lay, at common law, for the recovery of damages for the conversion of personal property in his possession, usually involving chattels held in bailment. Although the old forms of action have been abolished or disappeared under modern civil procedure in the United States, the common law action for conversion still exists in fact, if not in form. (Extensive case law is reviewed.) 

A person who purchases personal property from one not authorized to sell the chattel may be held liable for the conversion of the article. This is regardless of the fact that the purchaser was honestly mistaken, or acted innocently, in good faith and without knowledge of the seller's lack of authority to make the sale. This rule also holds in cases where the purchaser takes possession of the goods, mixes them with his own property, holds them to his own use, refuses to surrender possession on demand, disposes of the goods to a third person by sale, lease or bailment or in general exercises rights of ownership as to the property purchased in denial of the real owner's rights after knowledge of the rights of the true owner.

Deaderick  Oulds, 1887.

In the 1887 case of Deaderick  Oulds, the Supreme Court of Tennessee ruled on a case of trover. The defendant, Oulds, cut 800 walnut logs, branded them with the letter "D", then proceeded to float them down a river with the intention of recovering them downstream. Sometime later, Oulds found an unmarked log among his other marked logs which had peculiar cracks at one end. He floated the unmarked log down the river, and it washed up on an island owned by the plaintiff, Deaderick, who then claimed the log as his in trover or replevin. The Tennessee court quoted the English case of Bridges  Hawkesworth where the plaintiff, being in the shop of the defendant, picked up a parcel containing bank notes. The defendant, at the request of the finder, took charge of the notes, to hold for the owner. After three years, no one had come forth to claim them. The defendant shop owner refused to deliver them to the plaintiff. The court held the defendant shop owner liable in trover for the notes.

The Tennessee Supreme Court observed it is essential in cases of trover, that the property must be found; it must at the time when the finder came upon it, to have been in such a situation as to clearly indicate that it was lost. It cannot have been placed there by the original owner who lost it by carelessness or forgetfulness, where it was later found by someone else. In such cases, the owner of the premises where the property is found is treated as a quasi-bailee (for example he holds the property for the original owner), and he may maintain trover against the finder. Since the log was not intentionally laid by the (unknown) owner on the land of the plaintiff (Deaderick), and hence he was not a quasi-bailee for the owner, he cannot hold against the superior right of the defendant (Oulds) arising out of his prior possession and earlier finding of the log. Judgment for ownership of the log was to the defendant Oulds.