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Charles George Carrothers (c1892-1956) of Kennedy and Donkin
1956 Obituary 
We have also learned with regret of the death, through a motor accident on May 22nd, of Mr. Charles George Carrothers, M.I.Mech.E., M.I.E.E.
Mr. Carrothers, who was sixty-four, was the senior engineer and head of the research department of Kennedy and Donkin, consultants, of Westminster.