A2Acollection via https://opendata.archieven.nl/dataset/53838BC4E2E341999AF3E7B1309DE691
Dienstbodenregister Spanbroek 22, 1901-1921.
Westfries Archief, Hoorn, Dienstbodenregister Spanbroek 22, 1901-1921., Dienstbodenregister Spanbroek 22, 1901-1921., 22