Warning: Be aware of scammers impersonating real agents.
Mr. Callen Martin
The Madeleine Milburn Literary Agency
Is your book too long (or too short) for this agent?
Get answers to this, and many more agent questions at QueryTracker.
General
Query Methods
Accepts queries via...
Online Form [Go To Form]
Genres
This agent is seeking the following genres:
Fiction
Children's
Middle Grade
Young Adult
Non-Fiction
none
Join Now (FREE) to learn more about this agent. (Such as how often and how quickly each agent replies to queries.)
Known Clients (current & past)
none found
Author Comments
Comments by authors about this agent.
MartinPorter
07/22/2026 10:27 AM
Q: 22nd March 2026
YA LGBTQ Sports romance, 78k words
CNR 7/22/26
YA LGBTQ Sports romance, 78k words
CNR 7/22/26
CleoArrow
07/20/2026 09:45 PM
Queried June 30, 2026
Nudged with notification of full requests July 20, 2026
YA Historical Fantasy Romance 100k
Nudged with notification of full requests July 20, 2026
YA Historical Fantasy Romance 100k
yum_cheesecake
06/11/2026 04:53 AM
Q: 18 January
CNR 120 days
CNR 120 days
theaquinn
01/21/2026 02:57 AM
Looking at his profile, he seems to only take Children's, YA and New Adult, so that's on me.
Agent Interviews
Interviews with this agent from across the web.
None found for this agent
Success Story Interviews
Read interviews with authors who have signed with this agent.
None found for this agent
Profile History
- Last Update:
- 01/16/2026 - Changed agencies. Formerly with Bell Lomax Moreton.
Disclaimer
Always verify agent's information before sending your query, and review the agent's website(s) for more up-to-date information.
Though we do our best, QueryTracker can not guarantee the accuracy of any information provided.
An agent listing on QueryTracker is not an endorsement or recommendation of that agent by QueryTracker.
Before contacting an agent, authors should verify and assess the agent's requirements and suitability by visiting the agent's website(s), and becoming familiar with ways to spot and avoid bad agents. A good place to start is Writers Beware, a watch group that helps inform and protect authors from shady practices.
CNR: 7/29/2026