St. Louis Mercantile Library | UMSL

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Effective July 26, 2021In alignment with public health guidelines, the University of Missouri–St. Louis, including the St. Louis Mercantile Library and Thomas Jefferson Library, will require all faculty, staff, students and visitors age five and older to wear a face mask when entering or occupying a physical building or facility owned, operated or managed by the university regardless of vaccination status. Additionally, face coverings are required when utilizing campus shuttles. Wearing face masks outdoors, especially in group settings, will be strongly encouraged.

See additional information regarding the Coronavirus Response and Updated Policies at UMSL: UMSL Coronavirus Updates

The Mercantile is hiring!
We are seeking a full-time emerging scholar for the
Scott Early Career Special Collections Librarian

Apply here


About the Library:

Established in 1846 by civic leaders and philanthropists, the Mercantile exists today as a vibrant community and cultural asset. It is the oldest library west of the Mississippi and the grandparent of St. Louis cultural institutions.

The task of the Mercantile Library as a research library is to make its collections, which have come to concentrate on Western Expansion and the history, development, and growth of the St. Louis region and of the American rail and river transportation experiences, available to the widest number of local and national users.

View the latest edition of the St. Louis Mercantile Library Newsletter here!



Exhibition catalogues are available for purchase in the Gift Shop 
for a limited time offer. Get yours now before they are gone!
Take a look inside the catalogue here!

See all of our upcoming Events and Exhibitions!


Library Tours:

To schedule a free, docent-led tour please call 314-516-7248 or email


For Research Inquiries:


Mercantile Library Research Request Form

Phone: 314-516-7240

The UMSL Digital Library

The UMSL Library Catalog, which includes items from the Mercantile and its collection.