Ric Holt

Richard Craig Holt (February 13, 1941 – April 12, 2019) was an American-Canadian computer scientist.
Early life.
Holt was born on in 1941 in Bartlesville, Oklahoma, to Vashti Young and C.P. Holt, but later moved to Toronto, Canada. As a teenager, he competed in track and field. He graduated from Cornell University in 1964 in Engineering Physics. He spent a year in the Peace Corps in Nigeria, and then worked for IBM. He went back to Cornell and obtained a PhD in computer science in 1970 under Alan Shaw.
Career.
He joined the faculty of the University of Toronto from 1970 to 1997, and the faculty of the University of Waterloo from 1997 to his retirement in 2014.
Holt's main research areas were operating systems, programming languages and software engineering, contributing many seminal results to each. His work includes foundational work on deadlock, development of a number of compilers and compilation techniques. His Turing programming language was used in universities and high schools in Canada and internationally. He also participated in the development of the Grok, Euclid, SP/k, and S/SL programming languages.
For many years, he ran a software company, Holt Software Associates (HSA), which created the Ready to Program environment still widely used in Canadian High Schools to teach programming.
Holt served as president of Gravel Watch Ontario from 2003 until 2015.
In the fall of 2005, he was named #16 on Computing Canada's list of top 30 IT movers and shakers in the country for the last 30 years. In 2017, Holt was awarded the OS-CAN/INFO-CAN Lifetime Achievement Award.
Death.
Holt died on April 12, 2019 on Quadra Island, British Columbia, Canada at the age of 78. He had Parkinson's disease and Lewy body dementia in his later years.