5 ▁P ans ar - T ek nik - Under h å ll , ▁" Arm our - Te chn ology - Main ten ance "). ▁From ▁ 1 9 4 7 ▁he ▁was ▁chairman ▁of ▁the ▁F ö ren ingen ▁för ▁be fr äm j ande ▁av ▁sk ol ung dom ens ▁v ap en öv ningar ▁(" Associ ation ▁for ▁the ▁Prom oting ▁of ▁the ▁School ▁Youth ' s ▁We ap ons ▁Ex er cis es "). ▁ ▁Personal ▁life ▁In ▁ 1 9 2 0 , ▁Jan se ▁married ▁El la ▁Hed v ig ▁Marian ne ▁Hol ter mann ▁( 1 8 9 5 – 1 9 4 9 ), ▁the ▁daughter ▁of ▁Cab inet ▁Chamber lain ▁Oscar ▁Hol ter mann ▁and ▁Count ess ▁Ma ud ▁von ▁Rosen . ▁They ▁had ▁three ▁children ; ▁( 1 9 2 0 – 2 0 1 3 ), ▁Ma ud ▁( 1 9 2 3 – 2 0 0 8 ) ▁and ▁Pe hr ▁( 1 9 3 1 – 1 9 9 6 ). ▁ ▁In ▁ 1 9 5 0 , ▁he ▁married ▁Count ess ▁E wa ▁Cre utz ▁( 1 9 1 3 – 1 9 6 6 ), ▁the ▁daughter ▁of ▁Fri her re ▁Carl - G ust af ▁Cre utz ▁and ▁Ger tr ud ▁Math ilda ▁Sch r öder . ▁ ▁Jan se ▁died ▁on ▁ 2 ▁October ▁ 1 9 6 1 ▁and ▁was ▁buried ▁on ▁ 1 8 ▁October ▁ 1 9 6 1 ▁at ▁L