David Blackwell: Pioneering Mathematician and Statistician

David Blackwell was born in Centralia, Illinois, the son of a railroad worker, and entered the University of Illinois at just sixteen. He earned his bachelor's, master's, and doctoral degrees there by age twenty-two, then held a postdoctoral fellowship at the Institute for Advanced Study in Princeton.

Despite that early brilliance, the racial barriers of the era meant he could only find teaching positions at historically Black colleges before eventually joining Howard University's mathematics department, which he later led. In 1954, he joined the faculty at UC Berkeley, becoming the university's first Black tenured professor. In 1965, he was named the first African American member of the U.S. National Academy of Sciences.

What he left behind

• Made significant contributions to game theory, probability theory, information theory, and Bayesian statistics
• Became Berkeley's first African American tenured professor, in 1954
• Named the first African American member of the U.S. National Academy of Sciences, in 1965
• Applied game theory to military strategy problems as a consultant at the RAND Corporation

Blackwell's career unfolded against a mathematics profession that offered Black scholars few institutional footholds; his appointments to Berkeley and the National Academy of Sciences marked barriers broken, not simply honors earned.

What most bios leave out

While finishing his fellowship at Princeton in the early 1940s, Blackwell didn't bother applying to research universities — he sent job letters to more than 100 historically Black colleges instead, having simply concluded, without bitterness, that teaching anywhere else wasn't realistically available to him. His first shot at Berkeley came years earlier than his eventual 1954 appointment: a mathematician there championed him for a faculty position and even persuaded the university president to back it, only for the department chair to withdraw the offer at the last minute because his wife objected to socializing with a Black colleague at the department's customary dinners. Blackwell later joined Berkeley anyway, a decade on, once attitudes had shifted enough to let him in.

His research also had a playful streak that doesn't always make it into the highlight reel: alongside his military and statistical work, Blackwell applied game theory to analyze the mathematics of bluffing in poker and the optimal timing for a duelist to fire a single shot — rigorous math applied to distinctly unserious scenarios.

About this set

Blackwell's card is one of six in The Patternmakers, part of the Continuum: Past | Present | Becoming postcard series. The Patternmakers gathers scholars and scientists who broke into fields that were never built with them in mind.

Shop David Blackwell's postcard pack or browse the full Continuum collection.