The Blanchard Family Papers document the professional achievements and personal lives of several generations of a scientifically minded and artistically gifted family. The papers focus heavily upon the eminent plant pathologist and nematologist Nathan A. Cobb, his wife Alice Vara Cobb, their daughter, biologist Frieda Cobb Blanchard, and her husband, herpetologist Frank Nelson Blanchard (the latter two of whom were professors at the University of Michigan). In addition to the photographs, drawings, correspondence, journals, and writings of these four individuals, the collection is rich in family correspondence, diaries, and personal papers from other members of the Cobb and Blanchard families (and their forebears and branches, including the Bigelow, Proctor, Ross, White, and Randall families). The Blanchard Family Papers will be of value to researchers interested in a variety of topics: scientific endeavors and methodologies (and in particular those related to agronomy, nematology, botany, and herpetology); the visual arts and the development of photography in the late nineteenth and early twentieth centuries; colonial and provincial life in Australia and Hawaii (respectively); and the daily affairs of American (and Michigan) families throughout the twentieth century. The Blanchard Family Papers consist of seven series: Nathan A. Cobb, Alice Vara Cobb, Frieda Cobb Blanchard, Frank Nelson Blanchard, Blanchard and Cobb Family Letters, Other Family Members, and Isaac G. Blanchard.