Henry Morton Stanley

Sir Henry Morton Stanley was a famous explorer.

At some point he was searching for a Dr. David Livingstone. Upon finding the man he uttered the now famous phrase "Dr. Livingstone, I presume?".

That phrase has entered popular lexicon and has been referenced by Beast upon meeting Magneto in prison, Chameleon when he freed Doctor Octopus from his prison cell, and Spider-Man when he found John Jameson on Counter-Earth.

Background
His famous line was uttered several times but the person was not specifically mentioned.