Sources and datasets

Government structure

Who elects, appoints and holds whom to account? Institutions and their roles, with official sources and a check date.

National officeholders

Members of Parliament, the cabinet, Raad van State and Algemene Rekenkamer, plus parliamentary committees. Files reflect the dates shown.

Career and other roles

Published careers, education and other roles, with sources and known dates. These histories are not always complete.

Regional officeholders

Roles and officeholders from official provincial and municipal sources. Each area records what is included and where information is missing or conflicting.

One person may appear more than once. Some listed roles may no longer be current.

Geographic boundaries

Province and municipality boundaries in the European Netherlands, from CBS and PDOK. Includes the coordinate system, notes on simplified map shapes and source licences.

Water boards and officeholders

The 21 water boards and published board roles, with sources and dates. Coverage identifies the people included and the information still missing for each water board.

Water-board boundaries

Boundaries of the 21 water boards from Het Waterschapshuis and PDOK, simplified for the map. Includes the coordinate system, processing, source dates and licence.

Regional population and elections

Population figures and national, provincial and municipal election results. Notes identify provisional figures, boundary changes and overseas votes excluded from totals.

Organisations and connections

Connections through work, lobbying, government contracts, education, nonprofits and countries. Each record includes sources, dates and the type of relationship.

Election locations

Electoral districts and six Amsterdam polling places from 2025. They illustrate the voting and counting tour; the route explains the process rather than tracking someone’s ballot.

Logo sources

Original images and source pages, with check dates and notes on identifying the organisation.

Amsterdam building models

Building shapes and heights from 3DBAG. The download links to map tiles and lists survey years, processing steps, missing buildings and sources.

The Hague building models

Building shapes and heights from 3DBAG, with survey years, attribution and notes on processing and the area shown.