Answer:
Docker, John.
Explanation:
It is going based on last names. Each starts with D, so then you move onto the second letter of the name. Decker, John would be first, then Dickman, Juan would be second. This leaves us with Docker and Dockman; since the first four letters are the same, you need to move onto the fifth one. E comes before M, which means that Docker, John would be third, and Dockman, James would be last.
