In Memoriam
David M. Goldstein
The following is from Richard S. Marken: Dr. David M. Goldstein, an early and enthusiastic supporter of PCT– his support began in 1980 – passed away on October 5, 2022. David was a colleague of […]
In Memoriam
In Memoriam
Martin Taylor
Maurice Martin Taylor died in the afternoon of Friday 17 March 2023, after several months of terminal illness. His 87th birthday was nine months prior, on 14 June 2022. By temperament and by education Martin […]
In Memoriam
Hugh Petrie
Hugh Petrie was a friend and supporter in his positions at Northwestern University, the University of Illinois, and the University of Buffalo, where he was Dean of the School of Education. Bill Powers dedicated Behavior: The […]
In Memoriam
Alice Powers McElhone
Bill’s sister Alice died on 5/22/22 at age 92. I think she might have been amused at the numerical alliteration. Her big brother Bill (1926-2013) was three years older. Her daughter Barbara writes, “Alice ran […]
In Memoriam
Richard Robertson
Dick Robertson died on 24 March 2022. His son, Eric, wrote to us “in addition to believing in and supporting the work of the Control Systems Group, my Father greatly appreciated and valued the collaboration […]
In Memoriam
Allison Powers (Allie)
[The following is from Barbara Powers (Bara).] My sister, Alison Mary Powers (Allie) of Lafayette, CO (formerly of Northbrook, IL) passed peacefully in the early hours of January 31, 2021. After a years-long battle with […]
In Memoriam
William T. Powers
Tributes to Bill upon his passing William T. Powers, the engineer/psychologist who developed Perceptual Control Theory (PCT) passed away on May 24, 2013 at the age of 86. He will be laid to rest next […]