The Question and Answer section for Poe’s Poetry is a great resource to ask questions, find answers, and discuss the novel.
The Raven was a hit after it was published in The New York Mirror, and was extensively reprinted and reviewed. The Raven made very little money, as different publications did not have to pay to reprint his story because of copyright laws.
The alliteration in the fourth line serves to enhance the description of the narrator.... the weary traveler who wants nothing more than to go home. The alliteration also serves to make the stanza flow.... giving it a musical effect.
All of them are written in whole or in part in first person.