A2Acollection via https://opendata.archieven.nl/dataset/065B480F7E5B4920B433ABABD6AE881C
NNA Obdam 29, notaris Johannes Jacobus Haarselhorst, 1867
Westfries Archief, Hoorn, NNA Obdam 29, notaris Johannes Jacobus Haarselhorst, 1867, NNA Obdam 29, notaris Johannes Jacobus Haarselhorst, 1867, 29