According to orginal Monon documents, the BL-2's were retired as follows.
Monon 30, retired 5/70 to Strobell
Monon 31, retired 11/66 to Industrial Maintenance Service
Monon 32 To KRM at merger in 1971.
Monon 33, retired 4/66 to Alco
Monon 34, retired 4/66 to Alco
Monon 35, retired 5/70 to Strobell
Monon 36, retired 5/70 to Ind, Maintenance service
Monon 37, retired 5/70 to Strobell
Monon 38, retired 4/66 to Alco
Monon units 30/35/37/207 were actually shipped to Electro-Motive from Lafayette on 5/14/70 against EMD order 728-1 for the PRSL.