Selwyn Dewdney was the first scholarly figure to discover the pictographs.
Their children were: Donner Dewdney, a child psychiatrist, known for discovering the facial distortion effect among schizophrenic children; Alexander Dewdney, a mathematician, author, conservationist, environmental scientist and naturalist; Christopher Dewdney, a Canadian poet; and Peter Dewdney, a photographer and gold prospector.
Selwyn College, Cambridge | Selwyn Edge | Edgar Dewdney | Alexander Dewdney | Selwyn Jepson | Selwyn Dewdney | Selwyn | Westminster-Dewdney | Selwyn Toogood | Selwyn Raab | Selwyn Lloyd | Harris and Selwyn Theaters | Don Selwyn | Christopher Dewdney | Selwyn (singer) | Selwyn River / Waikirikiri | Selwyn College | Selwyn Biggs | Alfred Richard Cecil Selwyn |
Dewdney is the son of Canadian artist and author Selwyn Dewdney, brother of Alexander Keewatin Dewdney, and the great-grand-nephew of Edgar Dewdney (Lieutenant-governor: British Columbia 1892—1897, Northwest Territories, 1881—1888).