Anna Rosalina Wilhelmina Demacker
Petrus Jacobus Joannes Willems⁽¹⁾ was born⁽²⁾ on 5 Jul 1901 in Oud-Valkenburg, L. He died⁽³⁾ on 3 May 1988 in Meerssen, L. He married Anna Rosalina Wilhelmina Demacker. Petrus was employed⁽⁴⁾ as landbouwer.