* Children's Literature: Her most well-known work is likely the children's book "The Boy Who Cried Wolf," which is a retelling of the classic Aesop's fable. She also wrote other children's books such as "The Little Red Hen," "The Three Little Pigs," and "The Gingerbread Man."
* Historical Fiction: Kirkus wrote numerous historical fiction novels, many of which were set in the American West.
* Romance Novels: Kirkus wrote a number of romance novels under the pen name "Mary Agnes."
* Poetry: She also published poetry collections.
Unfortunately, many of her works are out of print, and it is difficult to find a comprehensive list of all her titles. However, you can find some of her works online through libraries and online bookstores.
It's important to note that there are two individuals named Agnes Mary Kirkus who were both prolific authors:
1. Agnes Mary Kirkus (1889-1977) was a children's book author and historical fiction novelist.
2. Agnes Mary Kirkus (1890-1980) was a book reviewer and founder of the Kirkus Reviews service.
Therefore, when searching for her works, be sure to specify which Agnes Mary Kirkus you are looking for.