The collection is open for research.
MSS 0588, Donald Callender papers, Special Collections, University of Delaware Library, Newark, Delaware.
MSS 0611 Malcolm L. Mackenzie papers
Use of materials from this collection beyond the exceptions provided for in the Fair Use and Educational Use clauses of the U.S. Copyright Law may violate federal law. Permission to publish or reproduce is required from the copyright holder. Please contact Special Collections Department, University of Delaware Library, https://library.udel.edu/static/purl.php?askspec