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James Edgar (c1843-1907)
1908 Obituary 
JAMES EDGAR died at his residence at Wrexham on December 17, 1907, in his 64th year.
He was the eldest son of Captain Thomas Edgar, and in his early years was appointed Postmaster of the Borough of Wrexham, which position he filled for nearly a quarter of a century with conspicuous ability.
Several inventions were brought out by him, among which may be mentioned one for the purpose of establishing telephonic communication between the guards and engine-drivers of trains, in which he utilised the railway metals as conductors.
He was elected an Associate of the Institution in 1878, and an Associate Member in 1899.