J. De Deken
In 1914 De Deken was one of the two Belgian women who competed at the 1914 Salle Giandomenici international women's fencing competition in Amsterdam. This competition was the first women's fencing competition in the Netherlands with Dutch, British and Belgian competitors. She had a very nice match during the competition. Overall she was the best Belgian women and won the fourth prize behind C. E. Martin Edmunds, Esther Bekkers-Lopes Cardozo and Rosamund Johnstone.