[Callers] Unknown callers adn misicians...

Has anyone else noticed that many - in fact almost all - well known dance callers and musicians are almost never mentioned on Wikipedia? I was recently asked about Allan Block. A brief search showed me that although his daughter, Rory Block, an accomplished blues singer, has an entry in Wikipedia, Allan does not. Searches of Wikipedia for names like Bob McQuillen, Dudley Laufman, Ralph Page, and others also came up with nothing. Ted Sannella is the only contra caller or musician who I found with a Wikipedia entry. Maybe there are a few others. Should more be there? Rich.