hey we read this in english just last month so i know a little about it lol. Coalhouse is fictional HOWEVER, he is loosly based on Scott Joplin (jazz composer). Some of the similarities include where they come from (St. Louis i believe), the time in which they came to New York, and perhaps the most interesting was that Joplin wrote an opera called TREEMONISHA. In this opera, a black baby is found under a tree (just like in the novel/musical). This baby eventually becomes a black culture icon (i forget the whole synopsis). This is not unlike Coalhouses Son in the NOVEL. Tateh uses his son in his motion pictures in a movie about a white kid and a black kid who become friends and rise above racism (or something to that nature).
haha so longwinded..... sorry.
In conclusion, he is fictional but loosely based upon Joplin
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