Your place for reliable online research. We’ve put all of our online research resources in one spot to make it easier for you to find what you are looking for.

Art for Loan Banner


The Genealogy Collection includes print, electronic, and microfilm resources.  These include birth, marriage and death records, church records, city directories, plat maps, oral histories and much more!

Business Resource Center banner

Business Resource Center

Are you thinking about starting a business? The Monroe County Library System, partnering with the MI-SBTDC, presents the Business Resource Center. It includes books and other resources to aid entrepreneurs starting business ventures.

Custer Collection Banner

Custer Collection

Comprised of numerous books,  maps, photographs, video tapes, slides, sound recordings, paintings, and an extensive subject/vertical file.

Digital Collections Banner

Digital Collections

Digital versions of rare or delicate historical materials, such as photographs, documents, maps, sound recordings, books and more.

MCLS Federal Depository Library Banner

Federal Depository Library

Monroe County Library System is a depository for Federal, State, Local, and Nuclear Documents. These documents are housed in the Ellis Reference & Information Center on South Custer Road.

Image of Ellis collection

Special Collections

Whether you’re starting a business or researching local history, find your answers in these special collections.

Databases banner

Online Resources

A variety of professional journals and reference materials are available at your fingertips!