Research & Reference

The Library archives contain original materials that richly document the life of Mary Baker Eddy and the church she founded. The collections are central to the Library’s mission and include letters, manuscripts, organizational records, photographs, artifacts, books, periodicals, and other materials available for in-depth research.

Research & Reference Services is located on the 4th floor of the Library, and is open Tuesday-Friday, 10 a.m. to 4 p.m., and every First Saturday of the month. Please note that researchers are asked to fill out a Research Application form upon arrival.

Visit the Finding Aids page for further information on the Library’s collections of original historical materials related to Mary Baker Eddy and Christian Science. For more information on how to best access and utilize those collections, please Plan Your Visit.

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Calvin Frye's Autoharp

Calvin Frye worked for Mary Baker Eddy longer than anyone else, as both a secretary and bookkeeper. His service from 1882 to 1910 (with only one day of vacation!) is an incredible testament to his devotion to both Eddy and Christian Science, and to her appreciation of his talents.

Audiocast: Making it Public - The Mary Baker Eddy Papers Project

Sherry Darling is Project Manager and Lead Researcher for The Mary Baker Eddy Library’s Pilot Papers Project. She joined Senior Researcher Mike Davis to discuss this period in Eddy’s life. Their conversation opened up what Mary Baker Eddy’s sermons—newly available through—illustrate about her early efforts at sharing Christian Science with a wider audience.

"Send the flag – the Peace flag - to them with my love."

The "Peace Flag," on display on the second floor of The Mary Baker Eddy Library, is an artifact with a history that tells us a great deal about the peace movements active in the United States and Europe in the early twentieth century.

The historical background of "Rudimental Divine Science " by Mary Baker Eddy

Rudiments and Rules of Divine Science was published in November 1887.

15 Tips for Caring for Your Books

In order to protect their objects and archival materials, libraries and museums follow professional practices to promote long-term preservation. Your home, church, Reading Room, or workplace may not meet the somewhat rigorous standards of libraries and museums. But the following tips, adapted from professional standards, will still help you care for your books.

"Science and Health" Subscription Edition: A Brief History

The story of the "Subscription Edition1" began in 1900. William Dana Orcutt, who worked for Mary Baker Eddy’s printers, proposed the publication of a larger and more elaborate edition of Science and Health.

"...objects more beautiful": The Mary Baker Eddy Memorial in Mount Auburn Cemetery

This month’s Object of the Month is a bit unusual—our object is not part of The Mary Baker Eddy Library’s collections. But it is nonetheless one that many visitors to the Boston area with interest in Eddy’s history have seen: The Mary Baker Eddy Memorial at Mount Auburn Cemetery in Cambridge, Massachusetts.