Isn't that storry incorrect? It was called the Black Wall Street AFTER the race roits. Due to the amazing tenacity of the local black population, the area was rebuilt even better than it was before the riots and fires, it was THEN that it was first called the Black Wall Street. It wasn't the riots that destroyed the Black Wall Street, it was a combination of desegregation, integration, "suburbanization" and "urban renewal".
I posted the story meaning to outline the help it could recieve.
I don't really know when the term "black wall street" came to pass. You're correct though, it was rebuilt and better than before. It died out in the 60's due to the reasons you listed plus 244 cutting through its heart.