Commemorated on 5 plaques

Guglielmo Marconi 1874-1937 the Father Of Wireless. From this site was transmitted Britain's first official radio broadcast by Dame Nellie Melba 15th June 1920

Marconi Building, New Street, Chelmsford, United Kingdom where they transmitted Britains first official radio broadcast

Dame Nellie Melba was born on this site May 19 - 1861

David Street, Richmond, Melbourne, Victoria, Australia where they was born (1861)

Dame Nellie Melba nee Nellie Mitchell DBE CBE 1861-1901, Australia's Queen of Song lived at Marian during year 1883 with her husband Mr C. N. Armstrong manager of first Mirani Sugar Mill

Melba House, Eungella Road, Mirani, Queensland, Australia where they lived (1882-1883)

Dame Nellie Melba 1861-1931 Operatic Soprano resided here in 1906

Coombe House, Devey Close, Coombe, London, United Kingdom where they lived (1906)

Marconi House Within this building Marconi's Wireless Telegraph Company Limited operated their famous broadcasting station 2.L.O. from May 11th to November 14th 1922 when it became the first station of the British Broadcasting Company. The first pre-announced broadcast of public entertainment took place two years earlier when Dame Nellie Melba sang from Marconi's Chelmsford Works on June 15th 1920

Marconi House, The Strand, London, United Kingdom where they was