So who was Alexander Chernyshov? Wikipedia says:

Aleksandr Alekseyevich Chernyshov (Russian: Александр Андреевич Чернышeв; 21 August 1882 – 28 April 1940) was a Russian electrical engineer. He graduated from Saint Petersburg Polytechnical Institute in 1907, and worked there until the end of his life. His research consisted of radio engineering and high-voltage techniques. He won the Lenin Prize in 1930.

This doesn't seem particularly relevant, and also he died while Tom Riddle was a young boy. But it's a common name (as Google tells me). Did anyone catch the reference?