NNA Obdam 16, notaris Johannes Jacobus Haarselhorst, 1854
Westfries Archief, Hoorn, NNA Obdam 16, notaris Johannes Jacobus Haarselhorst, 1854, NNA Obdam 16, notaris Johannes Jacobus Haarselhorst, 1854, 16
A2Acollection via https://opendata.archieven.nl/dataset/9DEB7D92D6024BC1B374FA27F11B4966