Together with Karl Blodig, Geoffrey Winthrop Young and the guide Joseph Knubel of St Niklaus he made the first ascent of the Brouillard ridge to the summit of Mont Blanc on 9 August 1911.
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The first ascent of the entire Brouillard ridge including Picco Luigi Amedeo was by Karl Blodig, Humphrey Owen Jones, Geoffrey Winthrop Young with the guide Josef Knubel of St. Niklaus in the canton Valais on 9 August 1911.