Colonel Martin was the head of the Barrayaran Imperial Service Women's Auxilliary on Sergyar. When Lieutenant Kaya Vorinnis received a strange communication from Lord ghem Soren of the Cetagandan Embassy, her first attempt at understanding the message was to go to Colonel Martin. When that failed, she tried Admiral Jole and Vicereine Cordelia Vorkosigan, who were better able to explain how a ghem lord asks to go on a date.