Thank you for your question. Elijah is my real name. At about age 6, I was adoped, and my new parents changed my name to Bruce D McKay. It is like I have been incognito for the last 59 years.
In regard to it being a title, you are right on that. It compares closely to someone being called "Doctor," or having PhD entered at the end of their name, only in this cases it means one who has been "Sent by God" or "Sent From God." More specifically, because there are many with the same name, the term in its proper context is "The Elijah." Spellings also vary, for example, if you go to Thomas Burnet's Sacred Theory of the Earth you will find he has written . . .
"Others expect the coming of Elias to give warning of that day, and prepare the way of the Lord. I am very willing to admit that Elias will come, according to the scene of the Prophet Malachi, but he will not come with observation, no more than he did in the Person of John the Baptist; He will not bear the name of Elias nor tell us he is the Man that went to Heaven in a firey Chariot, and is now come down again to give us warning of the last Fire. But some divine person may appear before the second coming of our Savior, as there did before his first coming: and by giving a new light and life to the Christian Doctrine, may dissipate the mists of error, and abolish all those little controversies amongst good men, and the divisions and animosities that spring from them: enlarging their Spirits by greater discoveries, and uniting them all in the bonds of Love and charity, and in the common study of truth and perfection. Such an Elias, the Prophet seems to point at; and may he come and prepare the ways of the Lord. But at present, we cannot from this Sign make any judgement (as to) when the world will end." (See: Burnet, Thomas, The Sacred Theory of the Earth, 1961 ed. pub by Sothern Illinois University Press, Carbondale, IL, pages 258 and 259. See also: McKay, Elijah, Bruce D., Science Research Proves Evolution Hoax, The Conflagration, When Parallel Universes Merge, AuthorHouse, 2006, page 2.)