Mary Cummings
Great River Literary
Likely Open
Updated: 4/22/2026
Agent Information
Agent Bio
Mary established Great River Literary in 2021.
Mary finds great joy in helping her clients polish their stories to stand out for editors and to become books that will make a difference in kids' lives.
Before becoming a literary agent, Mary was Education Director at the Loft Literary Center in Minneapolis where, among other accomplishments, she curated an annual festival of children's literature and selected judges for the McKnight Award from leading editors in children's publishing.
Research Links
Query Information
Query Format
Query Format
Email
Genres Information
Genres Represented
Fiction
- Board Books
- Chapter Books
- Middle Grade
- Young Adult
Nonfiction
- Middle Grade
- Young Adult
Genres Not Represented
- Adult
Great River Literary
Great River Literary is an agency devoted exclusively to representing authors and author/illustrators of books for children and teens.
Agent requirements, submission statuses, and other information can change without notice. Due to the changing nature of this information and because guidelines are often open to interpretation, the user should review the agent's official website before submitting. This listing is provided for informational purposes and does not constitute an endorsement. We're rooting for you—good luck!