In Holland, who was the first licensed female watchmaker?

Cornelia Arnolda Johanna "Corrie" ten Boom (15 April 1892 – 15 April 1983) was a Dutch watchmaker and Christian who, along with her father and other family members, helped many Jews escape the Nazi Holocaust during World War II by hiding them in her closet. She was imprisoned for her actions. Her most famous book, The Hiding Place, is a biography that recounts the story of her family's efforts.

Corrie ten Boom was born on April 15, 1892 to a working class family in Haarlem, Netherlands, near Amsterdam. Named after her mother but known as "Corrie" all her life, she was the youngest child of Casper ten Boom, a jeweler and watchmaker. Her father was fascinated by the craft of watchmaking and often became so engrossed in his own work that he forgot to charge customers for the services.

Corrie trained to be a watchmaker herself and in 1922 became the first woman licensed as a watchmaker in Holland. Over the next decade, in addition to working in her father's shop, she established a youth club for teenage girls, which provided religious instruction as well as classes in the performing arts, sewing and handicrafts. She and her family were Calvinists in the Dutch Reformed Church, and their faith inspired them to serve their society, offering shelter, food, and money to those in need.