There are a few differences between Stephen Crane's short story The Open Boat and a shipwreck account entitled Stephen Crane's Own Story.
One difference a reader of each text can see immediately is the point-of-view. The Open Boat is written in third person and the account of a shipwreck is written in first person.
Secondly, while the shipwreck account begins with Crane's description of the ship's departure, the short story beings with the men already at sea. It is almost as if the short story picks up far into the true account Crane provides in the news story (one can assume that Crane did not find the beginning of his true life account on the sea as important as the isolation felt later).
Another difference between the two texts is the language itself. The language used in the shipwreck account is more elevated than that of the short story. As a reader, one may find him or her self lost in the language Crane's "own story" uses. The language in the short story, on the other hand, is very easily negotiable.