Table:
0
A
B
C
D
E
1
District
Vacator
Reason for change
Successor
Date successor seated
2
Virginia 3rd
Andrew Jackson Montague (D)
Died January 24, 1937
Dave E. Satterfield, Jr. (D)
November 2, 1937
3
Texas 10th
James P. Buchanan (D)
Died February 22, 1937
Lyndon B. Johnson (D)
April 10, 1937
4
California 10th
Henry E. Stubbs (D)
Died February 28, 1937
Alfred J. Elliott (D)
May 4, 1937
5
Pennsylvania 18th
Benjamin K. Focht (R)
Died March 27, 1937
Richard M. Simpson (R)
May 11, 1937
6
New York 27th
Philip A. Goodwin (R)
Died June 6, 1937
Lewis K. Rockefeller (R)
November 2, 1937
7
Massachusetts 7th
William P. Connery, Jr. (D)
Died June 15, 1937
Lawrence J. Connery (D)
September 28, 1937
8
New York 17th
Theodore A. Peyser (D)
Died August 8, 1937
Bruce F. Barton (R)
November 2, 1937
9
Oklahoma 5th
Robert P. Hill (D)
Died October 29, 1937
Gomer Griffith Smith (D)
December 10, 1937
10
New Jersey 9th
Edward A. Kenney (D)
Died January 27, 1938
Vacant until the next Congress
Vacant until the next Congress
11
California 17th
Charles J. Colden (D)
Died April 15, 1938
Vacant until the next Congress
Vacant until the next Congress
12
New Hampshire 1st
Arthur B. Jenks (R)
Lost contested election June 9, 1938
Alphonse Roy (D)
June 9, 1938
13
South Carolina 6th
Allard H. Gasque (D)
Died June 17, 1938
Elizabeth Hawley Gasque (D)
September 13, 1937
14
New York 1st
Robert L. Bacon (R)
Died September 12, 1938
Vacant until the next Congress
Vacant until the next Congress
15
Resident Commissioner of the Philippines
Quintin Paredes (NAC)
Resigned September 29, 1938
Joaquín Miguel Elizalde (NAC)
September 29, 1938
16
New York 15th
John J. Boylan (D)
Died October 5, 1938
Vacant until the next Congress
Vacant until the next Congress
17
New York 42nd
James M. Mead (D)
Resigned December 2, 1938 to run for the US Senate
Vacant until the next Congress
Vacant until the next Congress

Questions and formulas:
Question: On what date was James P. Buchanan (d)'s successor seated?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="James P. Buchanan (D)"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E17,B2:B17="James P. Buchanan (D)"),5))
Level: medium
Question: How many people vacated to successor Dave E. Satterfield, Jr. (d)?
Formula: ROWS(UNIQUE(FILTER(B1, D1="Dave E. Satterfield, Jr. (D)")))
Formula2: ROWS(UNIQUE(FILTER(B2:B17, D2:D17="Dave E. Satterfield, Jr. (D)")))
Level: medium
Question: Why did Robert L. Bacon (r) vacate?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="Robert L. Bacon (R)"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E17,B2:B17="Robert L. Bacon (R)"),3))
Level: medium