Earlier today a deed within the Cumberland Real Property Records was located which happens to reference the Forest Mills spur, mentioned in a previous post. The property transfer from Sarah Harmon to the B&SR defines the lot, in part, through:

Commence at an iron pipe driven on the Easterly line of said Company’s said location and nearly opposite to where the side track leading to the Forest Mills Company’s coal yard leaves the main track…

The 1910 transfer, dated two years or so prior to the map discovered recently, is retained in the Registry’s Book 867, page 326.

With this further definition that the spur existed and led to a coal yard for the Forest Mills Woolen factory, I will be revising my track plan to include the additional track.