Fonds contains records relating to the research of David C. Walker. This includes photographs of electron microscope images and illustrations regarding epithelial and endothelial tri-cellular corner tight junctions. Also included are notes, drafts, reviews, and final copies of four publications: “The role of epithelial cell tight junctions in tracheal permeability,” “The reassessment of the tricellular region of epithelial cell tight junctions,” “The structure of the tricellular junctions of pulmonary capillaries,” and “Tricellular corners: preferred sites for leukocyte emigration from the pulmonary vasculature of rabbits".