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Archival DescriptionPhotographs of Ernest W. Guptill at the International Union of Pure and Applied Physics in Rome (1957) and in St Andrews, New Brunswick, with author David Walker
Photographs of Ernest W. Guptill at the International Union of Pure and Applied Physics in Rome (1957) and in St Andrews, New Brunswick, with author David Walker
Ronald St. John Macdonald's correspondence from the 1980s
Ronald St. John Macdonald's correspondence from the 1980s
Ronald St. John Macdonald's unsorted correspondence from 2000 to 2005
Ronald St. John Macdonald's unsorted correspondence from 2000 to 2005