These subject files are not complete. Files deemed to contain information of a valuable character were segregated from the extant series, which was itself incomplete. The coverage dates begin with the incorporation of the John O'Brien Lumber Company (the predecessor to the Somers Lumber Company) and end with the Somers Lumber Division of the Glacier Park Company (the Somers corporation having been dissolved in 1945).
From the description of Accounting office subject files, 1900-1951. (Unknown). WorldCat record id: 313865552