Sir William Henry Preece, Welsh electrical engineer, c 1900-1910.

An early pioneer in wireles telegraphy Sir William Henry Preece (1834-1913) originated his own system in 1892, but his most important contribution in this field was his encouragement of Guglielmo Marconi (1874-1937) by obtaining asistance from the Post Office in furthering Marconi's work. Preece also introduced into Britain the first telephones, patented in the USA by Alexander Graham Bell (1847-1922), and was knighted in 1899.