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A. M. Niven (c1878-1950) of Bruce Peebles and Co
1950 Obituary 
We have learned, with regret, of the death of Mr. A. M. Niven, A.M.I.E.E., which occurred after a short illness, on December 31st. Mr. Niven, who was seventy-two, was a senior member of the staff of Bruce Peebles and Co., Ltd., Edinburgh, and had been in that company's service for more than forty years.
He took an active interest in the work of the Edinburgh Electrical Society, having been its honorary secretary and treasurer for many years.
Mr. Niven was elected to honorary life membership of the Society in 1947.