Table:
0
A
B
C
D
E
F
1
District
Incumbent
Party
First elected
Result
Candidates
2
Ohio 1
Tom Luken
Democratic
1976
Re-elected
Tom Luken (D) 56.5% Steve Chabot (R) 43.5%
3
Ohio 2
Bill Gradison
Republican
1974
Re-elected
Bill Gradison (R) 72.3% Chuck R. Stidham (D) 27.7%
4
Ohio 3
Tony P. Hall
Democratic
1978
Re-elected
Tony P. Hall (D) 76.9% Ron Crutcher (R) 23.1%
5
Ohio 4
Mike Oxley
Republican
1972
Re-elected
Mike Oxley (R) Unopposed
6
Ohio 5
Del Latta
Republican
1958
Retired Republican hold
Paul Gillmor (R) 60.6% Tom Murray (D) 39.4%
7
Ohio 6
Bob McEwen
Republican
1980
Re-elected
Bob McEwen (R) 74.3% Gordon R. Roberts (D) 25.7%
8
Ohio 7
Mike DeWine
Republican
1982
Re-elected
Mike DeWine (R) 73.9% Jack Schira (D) 26.1%
9
Ohio 8
Buz Lukens
Republican
1986
Re-elected
Buz Lukens (R) 75.9% John W. Griffin (D) 24.1%
10
Ohio 9
Marcy Kaptur
Democratic
1982
Re-elected
Marcy Kaptur (D) 81.3% Al Hawkins (R) 18.7%
11
Ohio 12
John Kasich
Republican
1982
Re-elected
John Kasich (R) 80.1% Mark P. Brown (D) 19.9%
12
Ohio 13
Don Pease
Democratic
1976
Re-elected
Don Pease (D) 69.8% Dwight Brown (R) 30.2%
13
Ohio 14
Thomas C. Sawyer
Democratic
1986
Re-elected
Thomas C. Sawyer (D) 74.7% Loretta Lang (R) 25.3%
14
Ohio 16
Ralph Regula
Republican
1972
Re-elected
Ralph Regula (R) 78.6% Melvin J. Gravely (D) 21.4%
15
Ohio 19
Ed Feighan
Democratic
1982
Re-elected
Ed Feighan (D) 70.5% Noel F. Roberts (R) 29.5%
16
Ohio 20
Mary Rose Oakar
Democratic
1976
Re-elected
Mary Rose Oakar (D) 82.6% Michael Sajna (R) 17.4%

Questions and formulas:
Question: Which incumbent was first elected in 1958?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1=1958),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F16,D2:D16=1958),2))
Level: medium
Question: Who are all the candidates who ran in the district where Ralph Regula is the incumbent?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="Ralph Regula"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F16,B2:B16="Ralph Regula"),6))
Level: medium
Question: Which party does Del Latta belong to?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="Del Latta"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F16,B2:B16="Del Latta"),3))
Level: medium
Question: Which party does Tom Luken belong to?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="Tom Luken"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F16,B2:B16="Tom Luken"),3))
Level: medium