Table:
0
A
B
C
D
E
1
Builder
Model
Years of Daylight Service
Retired
Current Disposition
2
ALCO
PA
1953–1968
1968
No survivors
3
EMD
E7
1953–1968
1968
No survivors
4
EMD
E8
1954–1968
1968
No survivors
5
EMD
E9
1954–1971
1971
One survives; 6051
6
EMD
FP7
1953–1971; All but 6462 sold to Amtrak in 1971
Early 1980s (with Amtrak)
No survivors
7
EMD
SDP45
1967–1971; leased by Amtrak until 1974
Early 1990s
No survivors

Questions and formulas:
Question: What is the year of daylight service when the builder was Alco?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="alco"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E7,A2:A7="alco"),3))
Level: medium