Scope and Content of the Collection From the Collection: Sixteen personal journals, seventeen letter books, two letter drafts, four additional notebooks, and several items from Mallinckrodt’s brother, nephew, and mother. Every decade from the 1860s to the 1920s is represented except for the 1890s. Materials dated before 1915 represent Mallinckrodt’s time living in St. Louis, and those after 1915 are based in Salt Lake City. Mallinckrodt was an obsessive diarist, recording his innermost thoughts and passions on even the most mundane subjects. The...

Scope and Content of the Collection From the Collection: Sixteen personal journals, seventeen letter books, two letter drafts, four additional notebooks, and several items from Mallinckrodt’s brother, nephew, and mother. Every decade from the 1860s to the 1920s is represented except for the 1890s. Materials dated before 1915 represent Mallinckrodt’s time living in St. Louis, and those after 1915 are based in Salt Lake City. Mallinckrodt was an obsessive diarist, recording his innermost thoughts and passions on even the most mundane subjects. The...

Scope and Content of the Collection From the Collection: Sixteen personal journals, seventeen letter books, two letter drafts, four additional notebooks, and several items from Mallinckrodt’s brother, nephew, and mother. Every decade from the 1860s to the 1920s is represented except for the 1890s. Materials dated before 1915 represent Mallinckrodt’s time living in St. Louis, and those after 1915 are based in Salt Lake City. Mallinckrodt was an obsessive diarist, recording his innermost thoughts and passions on even the most mundane subjects. The...