The other tall man is named Morgan, John H.Morgan.

I saw him in Lexington once.

He's a great horseman.
The third, the slender man who looks as if he were all fire, is named Duke, Basil Duke.

I think that he and Morgan are related.

I fancy they are going south, or maybe to Virginia." "Harry, these are your people." "Yes, Sam, they are my people." The mountaineer glanced at the tall youth who had found so warm a place in his heart, and hesitated, but only for a moment.