Ellqvist, Bauer and their three-year-old son died on 20 November 1918 when the SS Per Brahe sailing to Stockholm sank in Lake Vättern,[1][13] killing all 24 people (8 passengers and 16 crew members)[14] on board.[15] On 18 August 1922, the Bauers were buried at the Östra cemetery in Jönköping (in quarter 04 plot number 06).[16]