Table:
0
A
B
C
D
E
1
District
Vacator
Reason for change
Successor
Date successor seated
2
Louisiana 7th
T. Ashton Thompson (D)
Died July 1, 1965
Edwin Edwards (D)
October 2, 1965
3
Ohio 7th
Clarence J. Brown (R)
Died August 23, 1965
Bud Brown (R)
November 2, 1965
4
North Carolina 1st
Herbert C. Bonner (D)
Died November 7, 1965
Walter B. Jones, Sr. (D)
February 5, 1966
5
Texas 8th
Albert R. Thomas (D)
Died February 15, 1966
Lera M. Thomas (D)
March 26, 1966
6
California 14th
John F. Baldwin, Jr. (R)
Died March 9, 1966
Jerome R. Waldie (D)
June 7, 1966
7
Alaska At-large
Ralph J. Rivers (D)
Resigned December 30, 1966
Vacant
Not filled this term
8
Indiana 8th
Winfield K. Denton (D)
Resigned December 30, 1966
Vacant
Not filled this term
9
Indiana 10th
Ralph Harvey (R)
Resigned December 30, 1966
Vacant
Not filled this term
10
New York 29th
Leo W. O'Brien (D)
Resigned December 30, 1966
Vacant
Not filled this term
11
North Carolina 4th
Harold D. Cooley (D)
Resigned December 30, 1966
Vacant
Not filled this term
12
Ohio 15th
Robert T. Secrest (D)
Resigned December 30, 1966
Vacant
Not filled this term
13
Pennsylvania 9th
Paul B. Dague (R)
Resigned December 30, 1966
Vacant
Not filled this term
14
Pennsylvania 16th
John C. Kunkel (R)
Resigned December 30, 1966
Vacant
Not filled this term
15
Tennessee 7th
Tom J. Murray (D)
Resigned December 30, 1966
Vacant
Not filled this term

Questions and formulas:
Question: Which district did Ralph Harvey (r) vacated when he resigned?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="Ralph Harvey (R)"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E15,B2:B15="Ralph Harvey (R)"),1))
Level: medium
Question: Who did Walter B. Jones, Sr. (d) succeeded in office?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="Walter B. Jones, Sr. (D)"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E15,D2:D15="Walter B. Jones, Sr. (D)"),2))
Level: medium