Constructed in 1859 by Sanilac County's first lawyer, John Devine, this building served as his law office until the end of the 19th century. It was then remodeled to become the library for the village of Lexington and opened on January 17, 1903. Mrs. Mary Moore Sleeper, wife of Michigan governor Albert E. Sleeper, and her sisters, Ella and Emma, named the library in honor of their father, Charles H. Moore, deeded the building to the village for use only as a library, and placed $2,500 in a trust for maintenance. The library's initial collection of 1,300 books was donated by L.L. Wood of Oscoda, an uncle of the Moore sisters. Anna Henry, the first librarian, served until 1911. Florence Walther then became librarian and was paid six dollars per month plus four dollars twice yearly for cleaning the building. She served for 57 years until retiring in 1968, when she was earning nearly $100 per month. Many improvements were made over the years, including the addition of the Philomena M. Falls Youth Room, dedicated on June 23, 1991, while the charm of the original building was preserved.