Carr suffered a heart attack in 1937, and another in 1939, forcing her to move in with her sister Alice to recover. In 1940 Carr suffered a serious stroke, and in 1942 she had another heart attack. With her ability to travel curtailed, Carr's focus shifted from her painting to her writing. The editorial assistance of Carr's friend Ira Dilworth, a professor of English, enabled Carr to see her own first book, "Klee Wyck", published in 1941. Carr was awarded the Governor-General's Award for non-fiction the same year for the work.