Master's mates are midshipmen or experienced Petty Officers who assist the Sailing Master with navigation of the vessel as well as supervision of the quartermasters and other duties.
“Alexander Cargill was a Master's Mate on HMS Hotspur. After getting underway from Spithead...Alexander Cargill
“Danvers was master's mate aboard HMS Justinian, who, along with Preston, acted as seconds during...Danvers
“Mr. Winyatt was Master's Mate aboard HM Sloop Le Reve, Acting Lieutenant Hornblower commanding...Winyatt
“Hart was a masters mate aboard HMS Renown. He was assigned as prizemaster of the French brig...Hart
“Preston was a master's mate aboard HMS Justinian who, along with Danvers, acted as seconds for...Preston
“Purvis was a master's mate aboard HMS Renown. During general quarters, Purvis was in charge of...Purvis