Koninklijke Academie van Beeldende Kunsten
At the age of 23 Suij had already begun to work as a painter. Four years later she was admitted to the ladies class of the Royal Academy of Art, The Hague. There she studied from 1882 until 1884. In Amsterdam she was a private pupil of Hendrik Johannes Havermann, John Gijsbert Vogel and Jan Hillebrand Wijsmuller.