Sources
The following sources (PDF) have been used to prepare the family tree and the associated pages.
- Nederland’s Patriciaat, 1924
- Nederland’s Patriciaat, 1928
- Ahnenliste des Wilhelm Arnold Nierstras
- Die Stammeltern des reformierten Geschlechts Nierstraß in Eschweiler Nierstrass-HeinrichMuellers (see About the origin of the Nierstraß family)
- Letters to Deonisius N (see About the Nierstrasz Coat of Arms)
- Letter from NP, 1925
- Letters from Hendrik N written 1927-01-06, 1927-01-09 and 1937-11-06
Register Reports (RTF)
- Nierstrasz Register Report
- Hahn Register Report
- de Grauw Register Report (Aarsse, Fritz, Hahn, Hoffmann, van Campenhout, Walhain)