A2Acollection via https://opendata.archieven.nl/dataset/97E71CAAACB6467D9D748204144E8E88
NNA Obdam 35, notaris Johannes Jacobus Haarselhorst, 1873
Westfries Archief, Hoorn, NNA Obdam 35, notaris Johannes Jacobus Haarselhorst, 1873, NNA Obdam 35, notaris Johannes Jacobus Haarselhorst, 1873, 35