Subseries consists of records pertaining to the life of George Walker, including his immigration from Britain, official documentation (such as an application for divorce from his first wife or a photocopy of his death certificate), and personal papers such as notes for a sermon.

Series consists of materials related to the life of George Dickson Walker immediately preceding his immigration to North America and the rest of his time spent living both in the U.S. and Canada. The bulk of these materials is correspondence, however, other records include paperwork and ephemera related to his immigration process, official records (e.g. divorce application, official affidavit, etc.), and some research he had done, likely pertaining to his own personal writing.