Around the end of the eighteenth century, the Verniers family owned considerable tracts of land south of Amsterdam, as far as the town of Weesp. A good picture of that area — the polders, dikes and waterways within which this family property lay — is given by the large map of the Hoogheemraadschap (regional water authority) of Zeeburg and Diemerdijk from around 1781.

This wall map, titled "Kaarte van alle de dykpligtige en eenige waalpligtige landen behorende onder het Hoogreemraadschap van den Zeeburg en Diemerdyk" (Map of all the dike-liable and some breach-liable lands belonging to the Hoogheemraadschap of Zeeburg and Diemerdijk), was engraved by the Amsterdam artist Jan Wandelaar (1690–1759), commissioned by the board of the water authority. Wandelaar was mainly active as an engraver, writer and art collector; it is unlikely he carried out the field surveys himself, but the detail and accuracy of the map show that a skilled land surveyor must have been involved. The ownership situation is noted for many plots, and even the years of earlier dike breaches are recorded at the breach ponds (wielen) and scour holes — the map thus forms an important source for the history of the whole area. Grown from a smaller map from before 1734, the work expanded in stages into a thirteen-sheet wall map of 122 by 210 centimetres, at a scale of roughly 1:6,000.

The complete map can be viewed online at Utrecht University Library. Those interested can zoom in there all the way to the individual plots and polders: