by jbvb
The peak of B&M Divisions was 1900 - 1930 or so. There were a lot of names, not all of which existed simultaneously: Eastern (old ERR & branches), Western (old B&M & branches), New Hampshire (B&L, CRR, Northern, BC&M), WN&P, Southern (WN&P branches?), Fitchburg, Connecticut River, Portland, Terminal.