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Male Efraín Jonckheer (Yrausquin) Click to view Efraín Jonckheer (Yrausquin) in the family tree Click to view Efraín Jonckheer (Yrausquin) in the family tree View timeline for this person's branch of the family tree

Efraín was born on October 20th, 1917.  Efraín's father was Willem August Jonckheer (Lingstuyl) and his mother was Sofía Gumersinda Yrausquin (Lampe).  His maternal grandparents were Cosme Damián  Yrausquin (Morante) and Reinira Wilhelmina Hendrina   Lampe (Meinhardt). He had a brother and a sister, named Augusto and Regina .  He was the youngest of the three children.

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