Great Northern Y-1
Fleet roster

ALCO serial
GE serial
Build date
GN No.
PRR No.
Scrap date
67022
10160
August 1927
5010
1
1966
67023
10161
September 1927
5011
—
1957
67542
10537
September 1928
5012
2
1962
67543
10538
July 1928
5013
3
1966
68272
11149
August 1930
5014
4
1960
68273
11150
August 1930
5015
5
1966
68274
11151
August 1930
5016
6
1966
68275
11152
August 1930
5017
7
1966

Question: What GN numbers were assigned to Y-1 units?
Answer: GN numbers 5010–5017 are classified as Y-1 locomotives.