Medical Library Association
Philadelphia, Philadelphia County, Pennsylvania
Marker Inscription
World's oldest medical library association founded here in 1898 to facilitate access to reliable medical literature for the improvement of health care. Among the US and Canadian founders were George M. Gould, MD; Sir William Osler, MD; and Margaret R. Charlton, librarian.
Erected by Pennsylvania Historical and Museum Commission
The Story
In 1898, at the close of a century that had transformed medicine into a science, a small group of American and Canadian physicians and librarians met in Philadelphia to solve a stubborn problem: doctors could not easily reach the reliable, up-to-date medical literature their patients' lives depended on. Their answer was the Medical Library Association, the world's oldest body of its kind, dedicated to organizing and sharing trustworthy medical knowledge. Among its founders stood the celebrated physician Sir William Osler and the librarian Margaret R. Charlton, pairing clinical prestige with the emerging profession of medical librarianship.
Why it matters
The association helped turn scattered medical knowledge into a shared, accessible resource, laying groundwork for the evidence-based, information-driven medicine Americans rely on today.
The story behind this marker
AI contextThe era
The Medical Library Association was founded here in 1898, at the close of a century that had utterly transformed medicine. Over the preceding decades, germ theory, antisepsis, and a flood of new research had turned healing from an art of tradition into something aspiring to be a science — and science runs on published, shared knowledge.
But that flood created a problem. Medical literature was scattered across countless journals, books, and languages, held unevenly in libraries that did not talk to one another. A physician trying to find the latest reliable findings could easily fail to reach knowledge that a patient's life might depend on.
This was the Progressive and Modern Era, a time of forming associations, setting standards, and professionalizing fields that had once been informal. It was exactly the moment to ask a new question: who makes sure doctors can actually find the best medical knowledge?
People & events
A small group of physicians and librarians from the United States and Canada came together to answer that question, and the marker names three of them. George M. Gould, a physician deeply involved in medical publishing, and the celebrated Sir William Osler, one of the most influential physicians of his age, lent the effort clinical prestige and credibility.
Alongside them stood Margaret R. Charlton, a librarian — and her presence matters. Pairing eminent doctors with a professional librarian signaled that organizing and sharing medical knowledge was itself a skilled discipline, not a clerical afterthought.
Together they founded what became the world's oldest medical library association, built to facilitate access to reliable medical literature for the improvement of health care. It was a modest-sounding mission with enormous implications: connect the people who heal with the knowledge they need.
Its place in the American story
The founding here reflects a quiet but profound shift in American and Canadian medicine — the recognition that good care depends not only on individual brilliance but on shared, trustworthy, findable information. That principle runs straight through to the evidence-based, information-driven medicine patients rely on today.
By organizing medical libraries and the professionals who run them, the association helped turn scattered knowledge into a common resource. It elevated medical librarianship into a genuine profession, one whose work sits invisibly behind countless clinical decisions.
As the oldest body of its kind in the world, founded on this spot, it marks Philadelphia — and the North American medical community more broadly — as a birthplace of the idea that reliable knowledge should be accessible to every practitioner who needs it.
If you visit
This is a marker that rewards a moment of reflection more than a photograph. Stand here and consider that something as invisible as a well-organized library helped shape modern health care, and that the profession of medical librarianship has a birthplace, and it is right here.
It fits beautifully into a walking tour of Philadelphia's deep medical heritage, a city thick with historic hospitals, colleges, and institutions devoted to the science of healing. Let this stop supply the connective tissue: the story of how all that knowledge got organized and shared.
Bring an appreciation for the people who work behind the scenes. The next time you or a doctor searches for reliable medical information, you will know that the idea of making such knowledge findable was, in part, founded on this ground.
Written by AI to add context, grounded in the marker’s inscription and the historical record. The inscription above is the original, unaltered text.
Plan your visit
NearbyMake a day of it — museums, food, and places to stay near this marker.
Museums & culture
- Bridgette Mayer0.7 mi away · 709 Walnut Street, Philadelphia, PA
- African American Museum in Philadelphia0.7 mi away · 701 Arch Street, Philadelphia, PA
- Congress Hall0.8 mi away · Philadelphia, PA
- Liberty Bell Center0.8 mi away · 526 Market Street, Philadelphia
- Independence Visitor Center0.8 mi away · 599 Market Street, Philadelphia, PA
- Independence Hall0.8 mi away · 520 Chestnut Street, Philadelphia, PA
Attractions
- One Liberty Observation Deck0.2 mi away
- Reading Terminal0.4 mi away
- The Universal Sphere0.4 mi away
- Chinatown Friendship Gate0.5 mi away · 10th and Arch Street
- Liberty Bell0.8 mi away · 526 Market Street, Philadelphia, PA
- President's House0.8 mi away
Food & drink
- Philly Pretzel Factory0.6 mi away
- Munchie’s Cafe0.6 mi away · 728 Chestnut Street, Philadelphia, PA
- Burger King0.6 mi away
- El Azteca0.6 mi away
- Fat Salmon0.6 mi away · 719 Walnut Street, Philadelphia, PA
- Maya's Pizza & Grill0.6 mi away · 716 Sansom Street, Philadelphia, PA
Places to stay
- Cambria Hotel Philadelphia Downtown - Center City0.2 mi away · 219 South Broad Street, Philadelphia, PA
- Holiday Inn Express0.2 mi away · 1305-11 Walnut Street, Philadelphia, PA
- DoubleTree by Hilton Hotel Philadelphia Center City0.2 mi away · 237 South Broad Street, Philadelphia, PA
- Residence Inn Philadelphia Center City0.2 mi away · 1 East Penn Square, Philadelphia, PA
- The Notary Hotel0.2 mi away · 21 North Juniper Street, Philadelphia
- Loews Philadelphia Hotel0.3 mi away · 1200 Market Street, Philadelphia
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Related people
- · George M. Gould
- · Sir William Osler
- · Margaret R. Charlton
Related events
- · Founding of the Medical Library Association
Themes & tags
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