Education in the United States
In 1940, Cyr served as president of the Rural Department of the National Education Association and authored "A Policy for Rural Education in the United States", published that year as the Rural Department's yearbook. Cyr was also the author of "The Small School in Wartime" (1942) and "Rural Education in the United States" (1943), which was translated into both Spanish and Portuguese. He was the coauthor of "The Small High School at Work" (1936), "An Introduction to Modern Education" (1936) and "Planning the Rural School Building" (1949).