Charles Dwight Sigsbee was a rear admiral in the United States Navy. In his earlier career, he was a pioneering oceanographer and hydrographer. He is best remembered as the captain of USS Maine, which exploded in Havana Harbor, Cuba, in 1898 and set off the events that led up to the start of the Spanish–American War. He was elected to the American Philosophical Society in 1899.

Seaton Schroeder was an admiral of the United States Navy. He contributed to the development of the Driggs-Schroeder rapid-fire gun.