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Halifax Hall, Sheffield: Disgraced German Businessman

The businessman stripped of his British knighthood seemingly due to his German origin

In 1918, Sir Joseph Jonas who lived at Endcliffe House in Sheffield was arrested under the Official Secrets Act under suspicion of passing information to the Germans.

German-born Jonas had spent nearly 50 years building the Sheffield steel firm Jonas and Colver, which employed 2,000 people. He鈥檇 been Lord Mayor of Sheffield, received a knighthood, donated vast sums of money to the University of Sheffield and even played host to the King. His home was Endcliffe House; now a boutique hotel is called Halifax Hall.

World War One wasn't a good time to be a German living in Britain. In 1918, with the war going badly and anti-German sentiment running high, he was tried at the Old Bailey.

He had passed information about products made by a rival firm Vickers to a German customer. But that was in 1913, a year before war was declared. Jonas was found guilty of a misdemeanour, fined, stripped of his knighthood and disgraced.

Today, his grandson insists it was a politically motivated attack and a miscarriage of justice.

Location: Halifax Hall, Sheffield, Yorkshire S10 3ER
Photograph of Encliffe House then and now. Historic image courtesy of Sheffield Archive and Local Studies

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