Did the Army drive Edgar Allan Poe insane?

Army life did not drive Poe insane.

There is no evidence of insanity in Poe. People think so mainly because he wrote short stories and poem where the narrator's sanity is questionable. Since Poe used the point of view of the first person in many of his stories, readers think he, Poe, is speaking through the narrator as if he himself is insane.