Subseries documents the journey of Pocock and Randle Cecil. Randle Cecil (1889 - 1917) was son of Lord Rupert Ernest William Gascoyne-Cecil, Bishop of Exeter, and in early 1913 Lord Gascoyne-Cecil asked Pocock to act as a guide and chaperon to Randle during an exploration of the Pacific North-West. For the main part of their journey, they traveled mostly by horseback from Calgary, AB, to Red Bluff, CA, over the later half of 1913. Subseries contains photographs and postcards of the locations they visited, and perhaps intended to visit, as well as some people they met (mostly unidentified) along the way. It is arranged into roughly chronologically into three files: Images from unknown locations, Images from Alberta and British Columbia, and Images from Washington to California.