Table:
0
A
B
C
D
E
F
1
District
Incumbent
Party
First elected
Result
Candidates
2
Louisiana 1
F. Edward Hebert
Democratic
1940
Re-elected
F. Edward Hebert (D) Unopposed
3
Louisiana 2
Hale Boggs
Democratic
1946
Re-elected
Hale Boggs (D) 68.6% Leonard L. Limes (R) 31.4%
4
Louisiana 3
Edwin E. Willis
Democratic
1948
Re-elected
Edwin E. Willis (D) 59.7% Hall M. Lyons (R) 40.3%
5
Louisiana 4
Joe Waggonner
Democratic
1961
Re-elected
Joe Waggonner (D) Unopposed
6
Louisiana 5
Otto Passman
Democratic
1946
Re-elected
Otto Passman (D) Unopposed
7
Louisiana 6
James H. Morrison
Democratic
1942
Lost renomination Democratic hold
John Rarick (D) 76.6% Crayton G. Hall (R) 23.4%
8
Louisiana 7
Edwin Edwards
Democratic
1965
Re-elected
Edwin Edwards (D) Unopposed

Questions and formulas:
Question: What's the year of the first election of the district whose incumbent is Edwin E. Willis?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="Edwin E. Willis"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,B2:B8="Edwin E. Willis"),4))
Level: medium
Question: What district is F. Edward Hebert the incumbent in?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="F. Edward Hebert"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,B2:B8="F. Edward Hebert"),1))
Level: medium
Question: Who were the candidates in the district whose incumbent is Joe Waggonner?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="Joe Waggonner"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,B2:B8="Joe Waggonner"),6))
Level: medium
Question: What's the district that Otto Passman is the incumbent of?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="Otto Passman"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,B2:B8="Otto Passman"),1))
Level: medium