Franciscus Jacobus Waakop Reijnders, born in Rotterdam in the year 1888, son of Antonius Theodorus Ludovicus Waakop Reijnders and Maria Elisabeth de Vet.

Franciscus was married to
Carolina Schut, born in Delft on April 14, 1888, daughter of Gerrit Schut and Maria Johanna Cornelia den Outer.