Photography
John Calvin Moss (January 5, 1838 – April 8, 1892) was an American inventor credited with developing the first practicable photo-engraving process in 1863. His work, and that of others such as William Leggo in Canada led to a revolution in printing and eventually to the mass marketing around the world of newspapers and magazines and books which combined photographs with traditional text.
Adolph de Meyer.
Harold Edwards (RCAF officer).
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