Table:
0
A
B
C
D
E
F
1
District
Incumbent
Party
First elected
Result
Candidates
2
Arkansas 1
William J. Driver
Democratic
1920
Re-elected
William J. Driver (D) Unopposed
3
Arkansas 2
John E. Miller
Democratic
1930
Re-elected
John E. Miller (D) Unopposed
4
Arkansas 3
Claude Fuller
Democratic
1928
Re-elected
Claude Fuller (D) Unopposed
5
Arkansas 4
William B. Cravens
Democratic
1932
Re-elected
William B. Cravens (D) Unopposed
6
Arkansas 5
David D. Terry
Democratic
1933
Re-elected
David D. Terry (D) Unopposed
7
Arkansas 6
John Little McClellan
Democratic
1934
Re-elected
John Little McClellan (D) Unopposed

Questions and formulas:
Question: How many first elections have Claude Fuller as incumbent?
Formula: ROWS(UNIQUE(FILTER(D1, B1="Claude Fuller")))
Formula2: ROWS(UNIQUE(FILTER(D2:D7, B2:B7="Claude Fuller")))
Level: medium