Music education innovator, rhythm method.

Elliott Jaques (January 18, 1917 – March 8, 2003) was a Canadian psychoanalyst, social scientist and management consultant known as the originator of concepts such as corporate culture, midlife crisis, fair pay, maturation curves, time span of discretion (level of work) and requisite organization, as a total system of managerial organization.

Emanuel Jaques (October 8, 1964 – July 29, 1977) was a Canadian 12-year-old boy who was murdered in Toronto.