February 28, 1892-December 28, 1954

BY ERNEST R. HILGARD

CALVIN PERRY STONE served as a professor of psychology at Stanford University for most of his adult career and achieved distinction as a comparative and physiological psychologist. His scientific contributions were recognized by his election to the presidency of the American Psychological Association in 1941 and to the National Academy of Sciences in 1943.

Calvin was born on a farm near Portland in Jay County, Indiana. He was the youngest son and the seventh of eight children, born to Ezekial and Emily Brinkerhoff Stone. His paternal great-grandparents were North Carolinians who moved to Ohio in 1830 and thence to Indiana two years later, where they occupied the first tract of land to be settled in Jay County. From his mother came Dutch blood. The Brinkerhoffs had first settled in New York, and, like the Stones, had gradually moved west, passing through Pennsylvania and Ohio to reach Indiana in the late nineteenth century.

The farming region in which Calvin grew up was sprinkled with relatives who, from time to time, took an active part in the affairs of his family. Significantly, the occasional teacher, minister, doctor, lawyer, or justice of the peace in the ancestral and immediate family presented hints of potentiality