Table:
0
A
B
C
D
E
F
1
District
Incumbent
Party
First elected
Result
Candidates
2
Texas 2
Jack Brooks
Democratic
1952
Re-elected
Jack Brooks (D) 62.7% John Greco (R) 37.3%
3
Texas 3
Lindley Beckworth
Democratic
1956
Re-elected
Lindley Beckworth (D) 59.3% James Warren (R) 40.7%
4
Texas 4
Ray Roberts
Democratic
1962
Re-elected
Ray Roberts (D) 81.4% Fred Banfield (R) 18.6%
5
Texas 5
Bruce R. Alger
Republican
1954
Lost re-election Democratic gain
Earle Cabell (D) 57.5% Bruce R. Alger (R) 42.5%
6
Texas 7
John Dowdy
Democratic
1952
Re-elected
John Dowdy (D) 83.6% James W. Orr (R) 16.4%
7
Texas 9
Clark W. Thompson
Democratic
1947
Re-elected
Clark W. Thompson (D) 75.3% Dave Oakes (R) 24.7%
8
Texas 10
J. J. Pickle
Democratic
1963
Re-elected
J. J. Pickle (D) 75.8% Billie Pratt (R) 24.2%
9
Texas 12
Jim Wright
Democratic
1954
Re-elected
Jim Wright (D) 68.5% Fred Dielman (R) 31.5%
10
Texas 14
John Andrew Young
Democratic
1956
Re-elected
John Andrew Young (D) 77.5% W. F. Patton (R) 22.5%
11
Texas 16
Ed Foreman
Republican
1962
Lost re-election Democratic gain
Richard C. White (D) 55.7% Ed Foreman (R) 44.3%
12
Texas 17
Omar Burleson
Democratic
1946
Re-elected
Omar Burleson (D) 76.4% Phil Bridges (R) 23.6%
13
Texas 18
Walter E. Rogers
Democratic
1950
Re-elected
Walter E. Rogers (D) 55.0% Robert Price (R) 45.0%
14
Texas 19
George H. Mahon
Democratic
1934
Re-elected
George H. Mahon (D) 77.6% Joe B. Philips (R) 22.4%
15
Texas 21
O. C. Fisher
Democratic
1942
Re-elected
O. C. Fisher (D) 78.1% Harry Claypool (R) 21.9%

Questions and formulas:
Question: Who ran in the race for Jack Brooks' seat?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="Jack Brooks"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,B2:B15="Jack Brooks"),6))
Level: medium