Mike Hanlon (first appeared in It)

Mike Hanlon is mentioned in the following books:

Insomnia (Sep 1994)

Mike Hanlon works at the library and, among other things, directs Ralph Roberts to books on the subject of insomnia.

But was that true? He didn’t really know, that was the devil of it, and the books on the subject Mike Hanlon steered him to down at the Derry Public Library weren’t much help. There were several on sleep disorders, but they seemed to contradict one another.
- Part 1 / Chapter 1