Fitchburg sheets with Boston and Maine RR Trackage 
Roughly in order, West to East
 
1887 Maps 
 2-3-17
 16
 12
 8
 9
 13-(11? - may be Old Colony RR)
 14
 15
 
1892 Maps 
 19
 20
 18
 5
 6
 9
 11-(12? - may be Old Colony RR)
 16
 17
 23
 
1897 Maps
 25
 22-23
 26
 4
 9
 10
 12
 19-(14? - may be NYNH&H RR)
 20-21
 24
 31 
 32
 30 - Townsend, MA

1902 Maps 
 50
 47
 44
 46
 43
 28-27
 29
 30
 1
 33-3
 35-5
 7-(9? - may be NYNH&H RR)
 8
 38
 37
 42
 41
 52 - Townsend, MA
 
 
1918-1921 Maps 
 41
 53
 
1936 and 1950 Maps 
 
218-219
217
220
216
215
209
205
206-208
19
3
10-11-6
17-12
18-43
42
44
45
46
48