Can we draw the following hypothesis from the context?

Context:

William Mercer Cook (January 27, 1869 July 19, 1944), better known as Will Marion Cook, was an African-American composer and violinist from the United States. Cook was a student of Antonin Dvorak and performed for King George V among others. He is probably best known for his popular songs and Broadway musicals, such as "" and "In Dahomey".

Hypothesis: William Mercer Cook was a genius.
It's impossible to say