Lucy estaba interesada en la educación de niños pequeños, por lo que publicó varios libros con el propósito de asistir a los lectores jóvenes: "Poetry for Children: Consisting of Short Pieces to be Committed to Memory" (1801), "Juvenile Correspondence or Letters, Designed as Examples of the Epistolary Style, for Children of Both Sexes" (1811), "An English Lesson Book, for the Junior Classes" (1828), y "The Acts of Life: of Providing Food, of Providing Clothing, of Providing Shelter" (1858).