The fonds consists of 45 glass-plate lantern slides showing scenes from Osterhout’s work with B.C. First Nations, including the Haida, Tsimshian, and Kwakwaka’wakw. The collection includes images of people, totem poles, and landscapes.

The fonds consists of the minutes of the Advisory Committee of the Japanese Mission, later called the Oriental Mission, 1908-1923; minutes of the Victoria District meetings, 1904-1911; and minutes of the Westminster District meetings, 1905-1923.