An older sister of Laurence Fitzgibbon, who held the purse strings. She did, however, pay the "little bill" that Phineas Finn had unwisely endorsed for her brother. "She was an old maid, over forty, very plain, who, having reconciled herself to the fact that she was an old maid, chose to take advantage of such poor privileges as the position gave her.... She was greatly devoted to her brother Laurence, -so devoted that there was nothing she would not do for him, short of lending him money" (1: 5:33). Finn 5, 22, 31