How we cite our quotes:
Within the altar of the old village church there stands a white marble tablet, which bears as yet but one word, – ‘Agnes!’ (53.16)
Oliver’s mother lost the moral right to her own last name (which was Fleming, in case you’ve forgotten) when she left her father and shamed him into changing his name. And she never got to take Oliver’s father’s last name (Leeford), because he never actually married her. So even in death, she can be remembered only by her first name, "Agnes."