A2Acollection via https://opendata.archieven.nl/dataset/B1F9AB3E55A644D491786A353D4AC066
NNA Hoorn 129, notaris Bernardus Henricus Janssen, 1890 jan-dec
Westfries Archief, Hoorn, NNA Hoorn 129, notaris Bernardus Henricus Janssen, 1890 jan-dec, NNA Hoorn 129, notaris Bernardus Henricus Janssen, 1890 jan-dec, 129