From 1919 she studied at the Toonkunst music school in Utrecht and her first compositions – three songs, a string quartet, and three piano pieces survive from 1920. In 1921 she wrote a second quartet, a piano quintet, a parody opera, and a pastorale for orchestra. In 1925 she completed only a piano trio and a choir piece. Insecure and disillusioned she decided to stop composing. She took an office job and composed only sporadically.
In October 1938 Stants married Leendert Sillevis from Culemborg, a widower fourteen years older than her. She began to compose again: a concerto grosso for flute, cello and string orchestra in 1940 and a suite for small orchestra in 1942.
After the war Stants dedicated herself to music education and related social activities. She died on 3 February 1968.
- Tijdschrift van de Vereniging voor Nederlandse Muziekgeschiedenis (in Dutch). Vereniging voor Nederlandse Muziekgeschiedenis. 1986. p. 196. Retrieved 2018-12-17.
- "Stants, Hendrika Henriëtte Cornelia (1903–1968)". Resources Huygens ING (in Dutch). 2018-10-04. Retrieved 2018-12-17.