The Associated Archives

One of the most significant collections of Catholic Church history in the U.S.

Note: The Archives will re-open to outside patrons on March 1, 2022. Patrons will be required to observe the following Covid-19 safety procedures:

  • Patrons must be fully vaccinated and boosted.

  • Patrons will be restricted to the Archives during their visit.

  • Patrons may be requested to wear a facemask.

The Associated Archives at St. Mary’s Seminary & University opened in the spring of 2002. Located on the campus of the nation’s first Roman Catholic seminary, this program brings together the archives of the Archdiocese of Baltimore (est. 1789), St. Mary’s Seminary & University (est. 1791), and the Associated Sulpicians of the United States (U.S. Province est. 1903), making it one of the most significant repositories for records relating to the early history of the Catholic Church in the United States.

A state-of the-art-facility was built to house the three archives. We offer researchers a spacious reading room in a climate-controlled (i.e., cool) environment that has a reference library and a digital microfilm reader/printer. Qualified researchers are able to access the collections through the existing card catalog system and typed finding aids. Please see our Collections page to learn about the open collections in each of the three archives. Our Visitor Policy and information on scheduling an appointment, hours and upcoming closings, directions and parking, and local accommodations can be found on the About the Archives page.

If you are interested in learning more about the genealogical and reference services we provide, please see the Genealogy and/or Reference & Research pages where you will find electronic versions of our policies and request forms together with other helpful information. Please note that we do not take requests over the phone. We require that all requests be submitted in writing (letter or e-mail) or by using one of our forms.

The Associated Archives collects records that have permanent, historical, and enduring value from the approved offices and departments of our three sponsoring institutions. To arrange for the transfer of records to the archives, please consult the Records Transfer page. Staff is also available for consultation.

About the Archives

Click here for more information about hours and visitor policies.

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Online Exhibits

The Archives is pleased to offer online exhibits that will highlight its collections through the people, places, and events associated with our three sponsoring institutions. 

Blessed Michael J. McGivney and St. Mary’s Seminary & University

This exhibit was created to celebrate the beatification in October 2020 of Blessed Michael J. McGivney, a Roman Catholic priest ordained for the Archdiocese of Hartford, founder of the Knights of Columbus, and alumnus of St. Mary’s Seminary & University.


Remembering Cardinal James Gibbons

The 100th anniversary of the death of Cardinal James Gibbons, the Archdiocese of Baltimore’s ninth archbishop, was observed on March 24, 2021. On such an occasion, it is only appropriate to look back on the career of this extraordinary churchman and leader of Maryland’s Catholic community, whose priestly ministry began at the start of the U.S. Civil War and    ended 60 years later in the aftermath of the                                                     First World War and a global pandemic.


Holy People of the Archdiocese of Baltimore

This page has been created to introduce visitors to some of the holy people who are members of the Archdiocese of Baltimore’s community of faith.


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Primary Sources

This page has been created to make available for the first time some of the records that can be found in our Archives. The records featured have been selected for their interest to both genealogists and students of history. All will help to shine light on the stories of the individuals who have comprised the Catholic community in the Archdiocese of Baltimore over its history.

The original records will be made available in digitized format as .pdf documents. Transcriptions and explanatory notes will be prepared to assist those interested in working with the records when possible.

Please click on the link for the records you are interested in accessing.

Easter Duty Lists of St. Mary’s Historic Seminary Chapel, 1809-1833


Confraternity Lists of St. Mary’s Historic Seminary Chapel, c. 1796-1858



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This section was created to provide researchers with a brief description of the open collections in the archives of the Archdiocese of Baltimore, St. Mary's Seminary & University, and the Associated Sulpicians of the United States.

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The Associated Archives at St. Mary’s Seminary & University has developed a genealogical policy responsive to individuals researching their Catholic roots.

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Reference and Research Services

The reference and research services offered by the Associated Archives are designed to accommodate requests for access to information found in our holdings while ensuring the long-term preservation of the collections and protecting the privacy of its individuals.

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Records Transfer

An archives is the official repository of an institution’s records and serves as the collective memory of that institution. For this reason, only records that have permanent and historic value should be transferred to the archives.

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