Miss Lavinia is one of Mr. Spenlow's sisters. Along with her sister, Clarissa, Lavinia takes Dora in after Mr. Spenlow's sudden death. She frequently alludes to a past romance with a man named Pidger, although David privately doubts that there was much to the supposed relationship. Nevertheless, Lavinia's taste for romance makes her inclined to sympathize with David, and both she and her sister agree to allow him to visit and court Dora.