|Model||Build Date||Builder's Number||Prime Mover||Horsepower|
Southern 2503 (Built as an SD24)
Precision National Corporation 1801 (Rebuilt by the Milwaukee Road for PNC as an SD10)
Chicago & North Western 6623 (Designated as an SD18R)
1801 runs light through the UW-Madison campus on its way to Middleton (3/9/00)
1801 leads the MALAM back from Middleton (3/9/00)
1801 throttles up as it crosses Pearl Street in Janesville (3/13/01).
1801 and 10A pull the JMA through Milton (3/13/01).