The Right Stuff: did they ever find out the identity of The Grand Designer?

Factual Questions
1

The movie and book The Right Stuff tells of the mystery man who designed the Sputnik and other super rockets. 'The Grand Designer" perhaps, who was never identified as of 1984. Did we ever discover his identity?

Thanks,

greatshakes

2

According to Wiki, it was Sergei Korolyov.