rdeknijf/militieregisters
.claude/skills/militieregisters/SKILL.md
Search Dutch militia/conscription registers (militieregisters) for all males aged 18-20 between 1811-1940. Uses the OpenArchieven API with sourcetype filter. Records contain name, registration date/place, and link to scan (which shows parents, physical description, occupation, regiment). 2.4 million indexed records across 20 archives. Use this skill when: "search militieregisters", "conscription record", "militia register", "loteling", "national service record", "physical description of ancestor", "/militieregisters", or when looking for a male ancestor born 1793-1922 (eligible for conscription at age 18-20). Also use when you need parents' names or physical descriptions for a Dutch male in the 19th/early 20th century. No login required.
$ install --global
skillsauthnpx skillsauth add rdeknijf/ai-genealogy-kit militieregistersInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 17, 2026, 2:32 AM5.8s1 file scanned
SKILL.md
- name:
- militieregisters
- description:
- |
Militieregisters — Dutch Conscription Records (1811-1940)
Search conscription registers for all Dutch males. These records are genealogically valuable because they list parents' names and physical descriptions (height, hair/eye color, face shape).
The original militieregisters.nl site is defunct. The data lives in
OpenArchieven with sourcetype=Militieregisters.
Coverage
- Period: 1811-1940 (males registered at age 18-20)
- Records: 2,466,133 person entries across 20 archives
- Geographic gaps: No Zeeland, Groningen, Drenthe, Overijssel (except Enschede), Limburg, or most of Gelderland (except Nijmegen, Ede, Barneveld, Zutphen). Coverage is partial, not nationwide.
Participating archives
| Code | Archive | Region |
|------|---------|--------|
| nha | Noord-Hollands Archief | Noord-Holland |
| saa | Stadsarchief Amsterdam | Amsterdam |
| srt | Stadsarchief Rotterdam | Rotterdam |
| hua | Het Utrechts Archief | Utrecht |
| frl | AlleFriezen | Friesland |
| rat | Regionaal Archief Tilburg | Tilburg |
| bhi | BHIC | Noord-Brabant |
| eal | ECAL | Achterhoek/Liemers |
| ran | Regionaal Archief Nijmegen | Nijmegen |
| gae | Gemeentearchief Ede | Ede |
| gab | Gemeentearchief Barneveld | Barneveld |
| szu | Regionaal Archief Zutphen | Zutphen |
| eem | Archief Eemland | Eemland |
| ade | Archief Delft | Delft |
| wba | West Brabants Archief | West-Brabant |
| sha | Streekarchief Langstraat | Langstraat/Heusden |
| ens | Stadsarchief Enschede | Enschede |
| svp | Streekarchief Voorne-Putten | Voorne-Putten |
| nle | Het Flevolands Archief | Flevoland |
| aal | Stadsarchief Aalst | Aalst (Belgium) |
Search method: OpenArchieven API
curl -s "https://api.openarchieven.nl/1.1/records/search.json?name=SURNAME&sourcetype=Militieregisters&number_show=25&lang=nl"
Parameters
| Parameter | Description | Example |
|-----------|-------------|---------|
| name | Surname (required) | Knijf, de+Knijf |
| sourcetype | Must be Militieregisters | Militieregisters |
| eventplace | Filter by municipality | Barneveld, Amsterdam |
| archive_code | Filter to specific archive | gae, nha |
| number_show | Results per page (max 100) | 25 |
| start | Pagination offset | 0, 25, 50 |
| sort | Sort order | 1 (name), 4 (date) |
Example searches
# All militieregisters for "Knijf" (46 results)
curl -s "https://api.openarchieven.nl/1.1/records/search.json?name=Knijf&sourcetype=Militieregisters&number_show=25&lang=nl"
# Filter to Barneveld
curl -s "https://api.openarchieven.nl/1.1/records/search.json?name=Knijf&sourcetype=Militieregisters&eventplace=Barneveld&number_show=25&lang=nl"
# Brouwer in Utrecht
curl -s "https://api.openarchieven.nl/1.1/records/search.json?name=Brouwer&sourcetype=Militieregisters&archive_code=hua&number_show=25&lang=nl"
Response fields
{
"personname": "Adrianus Wilhelm Knijf",
"relationtype": "Geregistreerde",
"eventtype": "Registratie",
"eventdate": {"day": 9, "month": 9, "year": 1873},
"eventplace": ["Rotterdam"],
"sourcetype": "Militieregisters",
"archive_code": "srt",
"archive_org": "Stadsarchief Rotterdam",
"identifier": "9dfdae47-daaa-c4f9-9240-f9377df277ef",
"url": "https://www.openarchieven.nl/srt:9dfdae47-..."
}
Important: The API returns only name, date, place, and URL. The genealogically rich fields (parents, physical description, occupation, regiment) are on the scan image linked from the record page. Always click through to the URL to read the full register entry.
Record detail
curl -s "https://api.openarchieven.nl/1.1/records/show.json?archive=ARCHIVE_CODE&identifier=UUID&lang=nl"
Workflow
- Search by surname (+ optional place filter)
- Review matches — filter by date/place to find the right person
- Open the
urlto view the full record page - Read the scan image for parents, physical description, regiment
Limitations
- Shallow index: API returns name + date + place only. Rich fields require reading the scan.
- No first name filter: Only surname search is supported.
- Partial coverage: 20 of ~130 Dutch archives. Major gaps in Gelderland, Zeeland, Groningen, Drenthe, Overijssel, Limburg.
- Also in WieWasWie: Some records (especially Noord-Holland 1870-1941) are in WieWasWie with richer indexed fields. Check both.
Output format
## Militieregister Result
**Person:** [name]
**Registration:** [date] in [place]
**Archive:** [archive name] ([archive code])
**Record URL:** [url]
**Confidence:** Tier B — official conscription register from [archive]
(Note: parents and physical description on scan, not in index)
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