Little is known of the identities of the men who served on the "Mary Rose", even when it comes to the names of the officers, who would have belonged to the gentry. Two admirals and four captains (including Edward and Thomas Howard, who served both positions) are known through records, as well as a few ship masters, pursers, master gunners and other specialists. Forensic science has been used by artists to create reconstructions of faces of eight crew members, and the results were publicised in May 2013. In addition, researchers have extracted DNA from remains in the hopes of identifying origins of crew, and potentially living descendants.