Question: Name the director who has directed The Simpsons for wich Marcia Wallace got the Emmy Award in1992 ?
Sentence (from "Marcia Wallace"): She is perhaps best known for her roles as receptionist Carol Kester on the 1970s sitcom "The Bob Newhart Show", and as the voice of elementary school teacher Edna Krabappel on the animated series "The Simpsons", for which she won an Emmy in 1992.
Relevant evidence: Yes