/-Hinrich SPECKMANN Johann SPECKMANN \-Maria Catharina VALENKAMP
1 Johann SPECKMANN =Anna Catharine WILLE 2 Berhard Gerhard SPECKMANN =Maria Elizabeth PIEKE Marriage: 30 Nov 1871, Groningen, Groningen, Nederland 3 Maria Johanna SPECKMANN =Marinus Cornelis WEIL Marriage: 4 Nov 1914, Amersfoort 3 Hinderika Alberdina SPECKMANN =Frederik WEIL Marriage: 8 May 1913, Groningen, Groningen, Nederland