Jacob Crowninshield

Jacob Crowninshield was a U.S. Representative from Massachusetts and appointee to the position of U.S. Secretary of the Navy, which he never filled. His brother Benjamin Williams Crowninshield did successfully hold the post the Crowninshield family in general was prominent in early American maritime affairs. His ancestor, Johann Casper Richter von Kronenscheldt, immigrated from Leipzig. He was the grandfather of Arent S. Crowninshield.

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Source: Wikipedia