Table:
0
A
B
C
D
E
F
1
District
Incumbent
Party
First elected
Result
Candidates
2
Texas 1
Wright Patman
Democratic
1928
Re-elected
Wright Patman (D) Unopposed
3
Texas 4
Ray Roberts
Democratic
1962
Re-elected
Ray Roberts (D) 70.2% James Russell (R) 29.8%
4
Texas 5
Earle Cabell
Democratic
1964
Lost re-election Republican gain
Alan Steelman (R) 55.7% Earle Cabell (D) 44.3%
5
Texas 6
Olin E. Teague
Democratic
1946
Re-elected
Olin E. Teague (D) 72.6% Carl Nigliazzo (R) 27.4%
6
Texas 9
Jack Brooks
Democratic
1952
Re-elected
Jack Brooks (D) 66.2% Randolph C. Reed (D) 33.8%
7
Texas 11
William R. Poage
Democratic
1936
Re-elected
William R. Poage (D) Unopposed
8
Texas 12
Jim Wright
Democratic
1954
Re-elected
Jim Wright (D) Unopposed
9
Texas 14
John Andrew Young
Democratic
1956
Re-elected
John Andrew Young (D) Unopposed
10
Texas 15
Kika de la Garza
Democratic
1964
Re-elected
Kika de la Garza (D) Unopposed
11
Texas 16
Richard C. White
Democratic
1964
Re-elected
Richard C. White (D) Unopposed
12
Texas 17
Omar Burleson
Democratic
1946
Re-elected
Omar Burleson (D) Unopposed
13
Texas 19
George H. Mahon
Democratic
1934
Re-elected
George H. Mahon (D) Unopposed
14
Texas 21
O. C. Fisher
Democratic
1942
Re-elected
O. C. Fisher (D) 56.8% Doug Harlan (R) 43.2%

Questions and formulas:
Question: Who is the incumbent in district Texas 15?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="Texas 15"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F14,A2:A14="Texas 15"),2))
Level: medium