Table:
0
A
B
C
D
E
1
State (class)
Vacator
Reason for change
Successor
Date of successors formal installation
2
Tennessee (1)
Vacant
Tennessee failed to elect a Senator on time
William Cocke ( DR )
Appointed May 15, 1797
3
Tennessee (2)
William Blount ( DR )
Expelled July 8, 1797
Joseph Anderson ( DR )
Elected September 26, 1797
4
Tennessee (1)
William Cocke ( DR )
Interim appointment until September 26, 1797
Andrew Jackson ( DR )
Elected September 26, 1797
5
Rhode Island (2)
William Bradford ( F )
Resigned sometime in October, 1797
Ray Greene ( F )
Elected November 13, 1797
6
Vermont (1)
Isaac Tichenor ( F )
Resigned October 17, 1797
Nathaniel Chipman ( F )
Elected October 17, 1797
7
Maryland (3)
John Henry ( F )
Resigned December 10, 1797
James Lloyd ( F )
Elected December 11, 1797
8
New York (1)
Philip John Schuyler ( F )
Resigned January 3, 1798
John Sloss Hobart ( F )
Elected January 11, 1798
9
Delaware (2)
John Vining ( F )
Resigned January 19, 1798
Joshua Clayton ( F )
Elected January 19, 1798
10
Tennessee (1)
Andrew Jackson ( DR )
Resigned sometime in April, 1798
Daniel Smith ( DR )
Appointed October 6, 1798
11
New York (1)
John Sloss Hobart ( F )
Resigned April 16, 1798
William North ( F )
Appointed May 5, 1798
12
Delaware (2)
Joshua Clayton ( F )
Died August 11, 1798
William H. Wells ( F )
Elected January 17, 1799
13
New York (1)
William North ( F )
Interim appointment until August 17, 1798
James Watson ( F )
Elected August 17, 1798
14
New Jersey (1)
John Rutherfurd ( F )
Resigned November 26, 1798
Franklin Davenport ( F )
Appointed December 5, 1798
15
South Carolina (2)
John Hunter ( DR )
Resigned November 26, 1798
Charles Pinckney ( DR )
Elected December 6, 1798

Questions and formulas:
Question: What is the number of vacators when the successor was William H. Wells ( F )?
Formula: ROWS(FILTER(B1,D1="William H. Wells ( F )"))
Formula2: ROWS(FILTER(B2:B15,D2:D15="William H. Wells ( F )"))
Level: easy
Question: What is the total number of dates of successor formal installation when the vacator was Joshua Clayton ( F )?
Formula: ROWS(FILTER(E1,B1="Joshua Clayton ( F )"))
Formula2: ROWS(FILTER(E2:E15,B2:B15="Joshua Clayton ( F )"))
Level: easy
Question: What is the total number of successors when the vacator was William North ( F )
Formula: ROWS(FILTER(D1,B1="William North ( F )"))
Formula2: ROWS(FILTER(D2:D15,B2:B15="William North ( F )"))
Level: easy
Question: What are all the states (class) when the successor was Joseph Anderson ( DR )?
Formula: FILTER(A1,D1="Joseph Anderson ( DR )")
Formula2: FILTER(A2:A15,D2:D15="Joseph Anderson ( DR )")
Level: easy
Question: What are all the states (class) when the reason for change was resigned November 26, 1798 and the vacator was John Hunter ( DR )?
Formula: FILTER(A1,(C1="Resigned November 26, 1798")*(B1="John Hunter ( DR )"))
Formula2: FILTER(A2:A15,(C2:C15="Resigned November 26, 1798")*(B2:B15="John Hunter ( DR )"))
Level: easy