Donald Murray invented the 5-unit code multiplex telegraph system.
Murray migrated from New Zealand to Sydney, Australia, to study and then became a journalist. For him journalism wasn't just about the words but how the newspaper was put together. He was fascinated by the mechanical operation, which set him wondering about setting printing type by telegraph.
He moved to New York and then London, where he published a paper on his typesetting ideas. This sparked a lot of interest and won him an award, with which he started to develop a prototype machine. Feeding off and improving the work of Emile Baudot, Murray developed a system that became widely used by the French telegraph administration.
Murray published a couple of books on telegraphy but most of his time was spent running his company, which made and sold the 'Murray' system.
He became ill in 1940 and moved to Switzerland, where despite three operations he died a few years later.
