John Mayberry, professor emeritus of mathematics at Brock University in Ontario, Canada, died Sept. 8, 2014, after gradually succumbing to Alzheimer’s disease. He was 85.

Born in Connecticut, Mayberry grew up in Ontario, and graduated from the University of Toronto in 1950. In 1955, he earned a Ph.D. in mathematics from Princeton. During his career, Mayberry wrote many articles, chapters, and books at the highest level of theoretical inquiry.

From 1958 to 1961, he was an operations analyst with the Air Force in Tokyo. At the Pentagon in Washington, D.C., he was chief of its research group until 1967. Upon leaving that year for consulting work, Mayberry received the Air Force’s Decoration for Exceptional Civilian Service for devising “solutions to the most difficult problems in applied mathematics and computation.”

In 1971, Mayberry joined the mathematics department at Brock University. He taught thousands of students, chaired his department, sat in the senate, and was an active member of the community until retiring in 1995. He was an APGA board member, graduate regional chair, and Princeton Schools Committee interviewer.

He is survived by Kerstin, his wife of 60 years; three children; and four grandchildren.

Graduate memorials are prepared by the APGA.

Graduate Class of 1955