Table:
0
A
B
C
D
E
F
1
District
Incumbent
Party
First elected
Result
Candidates
2
Louisiana 1
Bob Livingston
Republican
1977
Re-elected
Bob Livingston (R) Unopposed
3
Louisiana 2
Lindy Boggs
Democratic
1973
Re-elected
Lindy Boggs (D) Unopposed
4
Louisiana 3
Billy Tauzin
Democratic
1980
Re-elected
Billy Tauzin (D) Unopposed
5
Louisiana 4
Buddy Roemer
Democratic
1980
Re-elected
Buddy Roemer (D) Unopposed
6
Louisiana 5
Jerry Huckaby
Democratic
1976
Re-elected
Jerry Huckaby (D) Unopposed
7
Louisiana 6
Henson Moore
Republican
1974
Re-elected
Henson Moore (R) Unopposed
8
Louisiana 7
John Breaux
Democratic
1972
Re-elected
John Breaux (D) Unopposed

Questions and formulas:
Question: Who's the incumbent of the Louisiana 1 district?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="Louisiana 1"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,A2:A8="Louisiana 1"),2))
Level: medium
Question: Who were the candidates in the Louisiana 4 district?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="Louisiana 4"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,A2:A8="Louisiana 4"),6))
Level: medium
Question: Who's the incumbent in the district first elected in 1976?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1=1976),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,D2:D8=1976),2))
Level: medium