INFORMS News: In Memoriam - John Kettelle

John Kettelle, a long-time member of INFORMS and the founder of Ketron, died May 31.

Early in his career, Mr. Kettelle partnered with Daniel H. Wagner to perform innovative analyses of military operations research problems. Later he founded the software firm Ketron, which grew to some 300 people by the mid-1990s and became a major resource and contributor to OR/MS. Among Mr. Kettelle’s more noteworthy contributions were improvements in search theory and the invention of its counterpart, hide theory, in anti-submarine warfare.

His many friends and colleagues remember him as well for his lively intellect, his quick sense of humor, his wealth of amusing and informative anecdotes, his breadth of interests and experience, and his generosity and mentoring to beneficiaries too numerous to identify.

Memorial arrangements and a more thorough obituary are pending.

– Doug Samuelson