NNA Hoorn 59, notaris Gerrit Boldingh, 1867 mei-aug
Westfries Archief, Hoorn, NNA Hoorn 59, notaris Gerrit Boldingh, 1867 mei-aug, NNA Hoorn 59, notaris Gerrit Boldingh, 1867 mei-aug, 59
A2Acollection via https://opendata.archieven.nl/dataset/44EA44E49EEF4423B389BABCA4151571