A2Acollection via https://opendata.archieven.nl/dataset/A8C94A657229409ABEADD514055CD027
NNA Obdam 105, notaris Henrich Bernardus Gottmer, 1904 mei-juli
Westfries Archief, Hoorn, NNA Obdam 105, notaris Henrich Bernardus Gottmer, 1904 mei-juli, NNA Obdam 105, notaris Henrich Bernardus Gottmer, 1904 mei-juli, 105