| October 1921 | Canadian Railway and Marine World (Toronto) | Page 538, col. 3 |
Canadian National Railways construction, betterments, etc.
...
Muskoka Subdivision bridges.—We are officially advised that a contract has been let to the Hamilton Bridge Works Co., Hamilton, Ont., for the superstructure of the bridges to be erected over the Don River at mile 15, and over the Black River at mile 55.9, Muskoka Subdivision.
Railways: C.N.Rys.