Series consists of pages from a binder which Dorse used to keep track of the photographs that he took. The series is arranged into files based on the physical arrangement of papers within the binder as well as by function. The material has been removed from its original housing (a small leather binder) for preservation purposes. The order of pages in the binder has been maintained.

Series consists of three books of postcards that were likely used to show postcards to potential buyers or distributors. Two of them have cards made by Dorse, while one is a book of cards made by a different company. They are all spiral bound.

Series consists of postcards from British Columbia. The majority of the postcards have images taken by Dorse and/or printed by Dorse, but there are also some printed by Walter Lance, and some that were collected either by Dorse or Walter. Most of the postcards have an identification number on them which seems to be based on the image used and the size of the card. Similarly formatted numbers can be found on some of the items found in the “Prints, negatives, and transparencies” series of this fonds, and it is likely that these correspond to postcards. The series is arranged into files that reflect Walter’s arrangement and labeling of the cards, generally by town or region.

Series consists of negatives, prints, and transparencies of Dorse’s images, featuring scenes from around British Columbia. Material is arranged in folders that maintain their original grouping, order, and labeling. It is not clear if this grouping was that of Dorse or Mr. Lanz. Most folders are identified by the place shown in the images.

Items have been removed from their original envelopes and re-housed for preservation purposes. Any information that was on the original envelopes is included in the file descriptions.

Series consists of color 35 mm slides shot by Dorse throughout British Columbia. Most of the slides have a date stamp on them, in addition to a four digit identification number. Generally, slides with the same four digit number also have the same date. No known documentation exists for these numbers however. The slides came to Rare Books and Special Collections in slide boxes that were mostly grouped by these numbers and by dates, but were not arranged in numerical or chronological order. The slides have been re-housed for preservation purposes, but this original grouping and arrangement has been maintained.