Pseudonyms
(either with or without 'Dr.' added)
- Hendrik Pieter Nicolaas Muller
- Hendrik P.N. Muller
- Hendrik Muller
- Henk Muller (informal use)
- Hendrik Muller van Rijckevorsel (1880s-1900s; added surname of his mother)
- Hendrik de Warssel van Cingelshouck (since 1911; pen-name)
- Hendrik Muller van Werendycke (since c. 1919 while acting as Dutch envoy)
Read more about this topic: Hendrik Pieter Nicolaas Muller