Table:
0
A
B
C
D
E
1
State (class)
Vacator
Reason for change
Successor
Date of successor's formal installation
2
South Carolina (3)
Olin D. Johnston (D)
Died April 18, 1965
Donald S. Russell (D)
April 22, 1965
3
South Carolina (3)
Donald S. Russell (D)
Successor elected November 8, 1965
Ernest Hollings (D)
November 9, 1965
4
Virginia (1)
Harry F. Byrd (D)
Resigned November 10, 1965
Harry F. Byrd, Jr. (D)
November 12, 1965
5
Michigan (2)
Patrick V. McNamara (D)
Died April 30, 1966
Robert P. Griffin (R)
May 11, 1966
6
Virginia (2)
A. Willis Robertson (D)
Resigned December 30, 1966
William B. Spong, Jr. (D)
December 31, 1966
7
Tennessee (2)
Ross Bass (D)
Resigned January 2, 1967
Vacant
Not filled this term

Questions and formulas:
Question: which Vacator has a Reason for change of resigned november 10, 1965?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="resigned november 10, 1965"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,C2:C7="resigned november 10, 1965"),2))
Level: medium
Question: Which Reason has a State (class) of tennessee (2)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="tennessee (2)"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="tennessee (2)"),3))
Level: medium
Question: When is it that successor's formal installation has a Vacator of ross bass (d)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="ross bass (d)"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,B2:B7="ross bass (d)"),5))
Level: medium
Question: Which State (class) has a Successor of harry f. byrd, jr. (d)? Question
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="harry f. byrd, jr. (d)"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,D2:D7="harry f. byrd, jr. (d)"),1))
Level: medium
Question: Which date of Date of successor's formal installation has a State (class) of michigan (2)?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="michigan (2)"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="michigan (2)"),5))
Level: medium