Association of Dunkirk Little Ships

My Grandfather was on the very last boat which left Dunkirik during the evacuation. Does anybody know the name of the boat? My Mother told me a very funny story about it. My Grandmother would make herself look beautiful everynight awaiting his return. As he was on the last boat, she thought he was not coming home. She rolled her hair in curlers and covered her face in face cream only for the knock at the door to come and there he stood!