When Willemina Petronella Bartelsman was born on 17 April 1864, in Amsterdam, North Holland, Netherlands, her father, Christiaan Frederik Bartelsman, was 31 and her mother, Anna Cornelia Leger, was 25. She married Willem Rijnhard Nicolaas Leplaa on 26 February 1891, in Amsterdam, North Holland, Netherlands. They were the parents of at least 2 sons and 1 daughter. She died on 1 December 1944, in Nieuwer-Amstel, North Holland, Netherlands, at the age of 80.
Anglo-Saxon: Willan, to will, and mine, the mind, meaning a willing mind