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Henry Jonas (c1885-1915)
1915 Obituary 
HENRY JONAS died on April 6, 1915, at the age of thirty.
He was the fourth son of Sir Joseph Jonas, and a director of Sir Joseph Jonas, Colver & Co., Ltd., steel manufacturers, of Sheffield. He was educated in Sheffield and Scarborough, and afterwards travelled in France, Belgium, Holland and Spain.
He was in America on the business of his company when he contracted pneumonia, from which he died.
He was elected a member of the Iron and Steel Institute in 1911.