This series consists of photographs taken by Bolam at Ooldea while he was Station-master at Ooldea Siding on the Trans-Australian Railway from about 1919 to 1926. The photographs include some of the Aboriginal people who gathered at Ooldea Siding, some of Ooldea Siding and the transcontinental trains and others of the flora, fauna and geology of the Nullarbor Plain. Some of the photographs of Aboriginal people have detailed captions by Bolam providing personal details (eg totem and place of origin) of the individuals shown. These photographs have been mounted on paper sheets.