RICHARD: Rory, wonderful news. You finished in the top three percent of your class.
LORELAI: Oh yeah, Dad, J. Edgar Hoover over here was just telling us.
John Edgar Hoover (1895-1972) was the first Director of the FBI, and instrumental in its founding in 1935. Lorelai is making fun of her mother’s “spy work” in discovering that Rory is in the top 3% of her class from Bitty Charleston, the headmaster’s wife.
Rory had got herself into the top 10% by the time of the midterm exams, and now the top 3% by the time she completed her final exams for the year. This rise is remarkable, and not very believable in a prestigious school full of excellent students. She started late, began the year getting a D and missing a vital test in her best subject, English Literature, and only got a B+ for her Biology midterms – surely that would bring her average down a bit further than that?