Table:
0
A
B
C
D
E
F
1
District
Incumbent
Party
First elected
Result
Candidates
2
California 1
Clarence F. Lea
Democratic
1916
Re-elected
Clarence F. Lea (D) Unopposed
3
California 2
Harry L. Englebright
Republican
1926
Re-elected
Harry L. Englebright (R) Unopposed
4
California 3
Charles F. Curry
Republican
1912
Re-elected
Charles F. Curry (R) Unopposed
5
California 5
Richard J. Welch
Republican
1926
Re-elected
Richard J. Welch (R) Unopposed
6
California 6
Albert E. Carter
Republican
1924
Re-elected
Albert E. Carter (R) Unopposed
7
California 7
Henry E. Barbour
Republican
1918
Re-elected
Henry E. Barbour (R) Unopposed
8
California 10
John D. Fredericks
Republican
1923
Retired Republican hold
Joe Crail (R) 86.8% N. Jackson Wright ( S ) 13.2%

Questions and formulas:
Question: Who was the incumbent when henry e. barbour ran?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="Henry E. Barbour"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,B2:B8="Henry E. Barbour"),6))
Level: medium