Hugo Willem JONKER (RIN: 5945) was born abt. 1878 in Opsterland, Friesland, Netherlands. He married Gijsberta Henrika JORISSEN 21 August 1901 in Arnhem, Arnhem, Gelderland, Netherlands. Gijsberta Henrika JORISSEN (RIN: 5952), daughter of Geerhardus Johannes JORISSEN and Barbara PADBERG , was born 18 April 1877 in Aengwirden, Netherlands.