Table:
0
A
B
C
D
E
1
District
Vacator
Reason for change
Successor
Date successor seated
2
Georgia 2nd
Vacant
Rep. Edward E. Cox died during previous congress
J. L. Pilcher (D)
February 4, 1953
3
South Carolina 4th
Joseph R. Bryson (D)
Died March 10, 1953
Robert T. Ashmore (D)
June 2, 1953
4
Kentucky 2nd
Garrett L. Withers (D)
Died April 30, 1953
William H. Natcher (D)
August 1, 1953
5
Wisconsin 9th
Merlin Hull (R)
Died May 17, 1953
Lester Johnson (D)
October 13, 1953
6
New Jersey 6th
Clifford P. Case (R)
Resigned August 16, 1953
Harrison A. Williams (D)
November 3, 1953
7
Hawaii Territory At-large
Joseph R. Farrington (R)
Resigned June 19, 1954
Elizabeth P. Farrington (R)
July 31, 1954
8
Georgia 4th
A. Sidney Camp (D)
Died July 24, 1954
John J. Flynt, Jr. (D)
November 2, 1954
9
Michigan 3rd
Paul W. Shafer (R)
Died August 17, 1954
Vacant
Not filled this term
10
Ohio 15th
Robert T. Secrest (D)
Resigned September 26, 1954
Vacant
Not filled this term

Questions and formulas:
Question: what is the date the successor seated because the person died august 17, 1954?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="Died August 17, 1954"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,C2:C10="Died August 17, 1954"),5))
Level: medium
Question: who was the successor for district ohio 15th?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="Ohio 15th"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,A2:A10="Ohio 15th"),4))
Level: medium
Question: what is the total number for reason for change is district michigan 3rd?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="Michigan 3rd"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,A2:A10="Michigan 3rd"),3))
Level: medium