We put so much stock in the Electoral College, but just who are

Wildwood Crest - We put so much stock in the Electoral College, but just who are these electors who presume to vote for us? Can anybody identify even one elector, and will they vote the popular vote? In 1872, an elector voted for a dead man, Horace Greeley, who died just after the November election, but before the electors were to vote in December 1872.