: Busy beaver programs are described by Alexander Dewdney in Scientific American, August 1984, pages 19–23, also March 1985 p.
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).
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.
Dewdney, A. K. The Tinkertoy Computer and Other Machinations.
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