Sources
Seventeen sources. The first is J.J. Roovers’ booklet; the rest were used to supplement it, correct it, and carry it through to 2026.
Main source up to 1970
J.J. Roovers, Vertellingen over Nieuwveen (p. 163 ff.)
booklet · nearly all the material up to 1970
J.J. Roovers, Vertellingen over Nieuwveen, p. 163 ff.
On sale at the Historische Kring Liemeer, Oudheidkamer, Kerkstraat 31, Nieuwveen.
The provenance was established by Gert Rijlaarsdam, chairman of the Historische Kring Liemeer.
Where the document came from →Researched later
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Monument Inventory Project, municipality of Nieuwveen
Type: report
Provides: population figures 1988/1989, the Blokland reorganisation, the 1972 road
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Gemeentegeschiedenis.nl / Repertory of Dutch municipalities
Type: database
Provides: reorganisations of 1991, 1994, 2007
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Protestantse Gemeente te Nieuwveen
Type: website
Provides: church buildings, the deeds of 1331 and 1357, the Speelman family
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Reliwiki
Type: database
Provides: church buildings and organs
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Wikipedia (Nieuwveen, Liemeer, Station Nieuwveen, Wim Speelman, Jostiband)
Type: encyclopaedia
Provides: various
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De Nieuwkoper
Type: local news site
Provides: the Nicolaaskerk, the deported Jewish residents
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Historische Kring Liemeer
Type: local history society
Provides: the Johannesstichting, the Jostiband, the resistance, the Stolpersteine
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Ipse de Bruggen / Canon van Nederland
Type: website
Provides: the Johannes Stichting, the Ursulines, the Jostiband
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A.A. Hakker, Vereniging Johannes Stichting 1887-1990 (Matrijs, 1997)
Type: book
Provides: the Johannes Stichting
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Hoogheemraadschap van Rijnland / De Hollandsche Molen / Molendatabase
Type: database
Provides: the drainage, drainage windmills, the pumping station
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Water Management Plan for Nieuwkoop and district (2010)
Type: report
Provides: the polders and their drainage years
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Eerebegraafplaats Bloemendaal / Nationaal Comité 4 en 5 mei
Type: website
Provides: Wim Speelman, the war memorial
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Nieuwe Leidsche Courant, 26 November 1953 (Erfgoed Leiden)
Type: newspaper
Provides: street names, the map of 1567, the 1929 tower alteration
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Municipality of Nieuwkoop / Stichting Warmtenetwerk / Roosdom Tijhuis
Type: website
Provides: Schoterhoek II, the heat network, Landgoed Ursula
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Omroep West / Reformatorisch Dagblad, January-February 2026
Type: news
Provides: church closures in the Heilige Clara Parochie
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AlleCijfers.nl and the Kadaster, based on CBS figures
Type: statistics
Provides: population figures 2013-2026
How this was put together
Roovers’ series was gone through line by line for what it actually records: dates, events, names and amounts. Those facts are on this site, in wording of its own. His text is not: that is his, and the booklet is still on sale at the Historische Kring.
The series was then compared against public sources. Where a date of Roovers’ demonstrably differed, the corrected date was used and his original reading noted alongside it — as with the opening of the railway, which he places in 1916 and running to Amsterdam, whereas the line opened on 1 August 1915 and ran from Uithoorn to Alphen aan den Rijn.
The series was then carried forward from 1970 to 2026. Those 48 later entries are kept separately identifiable throughout, so it is always visible what Roovers set down and what was found afterwards.
What could not be established is recorded as such, and has not been filled in with a plausible-sounding answer.
What could not be established
- Whether the folder that was found is Roovers’ own working draft or a copy of the printed booklet, and how it came into this family, has not been established.
- The name of the third resident of the Johannesstichting deported in 1943 has not been recovered, nor has the year the town hall at Teylersplein was built.
- The foreword announces two further parts that are missing from the pages that were found: a set of loosely chosen topics, and a list of old Nieuwveen names and terms.
- The Historische Kring Liemeer at Kerkstraat 31 is the body to ask about any of this.