Historical Fiction:
* The Last of the Mohicans (1932) - A reimagining of James Fenimore Cooper's classic novel, set in the French and Indian War.
* The Forbidden Trail (1931) - A novel about the Lewis and Clark expedition.
* With Malice Toward None (1934) - A historical novel about Abraham Lincoln.
* The Gentle Knight (1935) - A historical romance set in medieval England.
* The Devil's Rope (1939) - A novel about the development of the barbed wire fence.
* The Blue Eagle (1940) - A novel about the early days of aviation.
Western Fiction:
* The Heart of the West (1921) - A collection of short stories set in the American West.
* The Trail of the Golden Horn (1923) - A novel about the American West.
* The Last Ride (1927) - A novel about the American West.
Romance:
* The Enchanted Canyon (1925) - A romance novel set in the American Southwest.
* The Painted Desert (1927) - A romance novel set in the American Southwest.
Other Works:
* The Father of His People (1923) - A biography of President Theodore Roosevelt.
* The Home on the Hill (1928) - A novel about a family's struggle to survive in the American West.
* The World at His Feet (1936) - A novel about a young man's journey to success.
* The Last Frontier (1942) - A novel about the Alaskan gold rush.
Morrow's works were known for their historical accuracy, vivid characterizations, and strong narratives. She was a popular author in her time and her books continue to be enjoyed by readers today.