He was heavily involved in the development of Australia 's telegraphy and telephony networks .
John Yeates Nelson ( 1850 -- 29 December 1932 ) was a senior public servant with the New South Wales Post and Telegraph Department and later the Federal Postmaster - General 's Department .
John Yeates Nelson was heavily involved in the development of Australia 's telegraphy and telephony networks .
John Yeates Nelson ( 1850 -- 29 December 1932 ) was a senior public servant with the New South Wales Post and Telegraph Department and later the Federal Postmaster - General 's Department .