John Yardley

John (Jack) Yardley


Born: Columbia, South Carolina

Academic Degrees

  • AB: (Chemistry) Birmingham-Southern College 1949
  • MD: Johns Hopkins University School of Medicine 1953

Academic Positions

  • 1954 Assistant in Pathology, Assistant Professor, Associate Professor then Professor of Pathology, The Johns Hopkins University
  • 1988 - 1992 Baxley Professor of Pathology, The Johns Hopkins University (Director's Faculty title)
  • 2006 University Distinguished Service Professor of Pathology, The Johns Hopkins University


  • Vanderbilt University Hospital, Nashville, Tennessee
  • The Johns Hopkins Hospital, Baltimore, Maryland (Chief Resident under Dr. Arnold R. Rich (1957-1958)

Military Service

  • 1944 - 1946 Electronics Technicians Mate 2nd Class, U.S.N.R.

Selected Career Highlights

  • Developer and first Director of the Electron Microscopy Lab in the Department of Pathology, The Johns Hopkins University.

  • At The Johns Hopkins University he was Associate Dean for Academic Affairs from 1977-1984 and the Director (with John K. Boitnott) of the Department of Pathology from 1988-1992.

  • Received the F K Mostofi Distinguished Pathologist Award from the USCAP in 2000.

  • Organized and provided oversight for the colon cancer-centered "Bowel Tumor Working Group" at John Hopkins, and established the Division of Gastrointestinal Pathology at John Hopkins and the Fellowship Program in GI Pathology.

  • Founding Member and President of the Gastrointestinal Pathology Club (now Society) (1983-1984). Considered by many to be one of the Founding Fathers of Gastrointestinal Pathology in the USA.

  • Made a great many scientific contributions by correlating anatomical, pathophysiological and clinical features covering the range of gastrointestinal disorders. He especially focused on GI neoplasia, inflammatory diseases, and diseases of malabsorption, gastritis and infections.

  • Published over 150 papers and 20 book chapters, and primary Editor of the very successful textbook, The Gastrointestinal Tract.

  • Important publications included: "Combined electron and light microscopy in Whipple's disease. Demonstration of "bacillary bodies" in the intestine" with TR Hendrix, 1961; "Celiac disease. A study of the jejunal epithelium before and after a gluten-free diet." with TM Bayless, JH Norton and TR Hendrix, 1962; and "Dysplasia in inflammatory bowel disease: Standardized classification with provisional clinical applications" with RH Riddell, H. Goldman, DF Ransohoff, HD Appleman, CM Fenoglio, RC Haggitt, C. Ahren, P. Correa, SR Hamilton, BC Morson,and SC Sommers, 1983.

  • Co-Director of the IAP Long Courses on GI Pathology (with Dr. B.C. Morson) (1977 and 1988). Many Short Courses and Workshops for other GI Societies.

  • Interests included photography, vegetable gardening, sailing, fishing and camping. He built and learned to sail a "Mirror" dinghy with his family in Chesapeake Bay. His wonderful family includes his wife, Eritha, three children, William, Madeleine and Elizabeth, and six grandchildren.


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