# Johannes Gerardus Keulemans artist context and auction value notes

Canonical page: https://appraisily.com/artist/johannes-gerardus-keulemans/
Profile generated: 2026-08-24T20:57:53.905Z
Quality: medium confidence, adequate sources

## Artist identity

- Nationality: Dutch
- Common media: Lithography, Illustration, Painting

## Portrait

![Johannes Gerardus Keulemans](https://upload.wikimedia.org/wikipedia/commons/d/d9/John_Gerrard_Keulemans.jpg)
Unknown author Unknown author · Public domain
Source: https://commons.wikimedia.org/wiki/File:John_Gerrard_Keulemans.jpg

## About Johannes Gerardus Keulemans

Johannes Gerardus Keulemans (1842–1912), also widely identified as John Gerrard Keulemans, was a Dutch bird illustrator whose career became closely connected with British ornithological publishing. From 1869 he worked in Great Britain, and he is especially associated with bird lithographs and illustrations made for prominent nineteenth-century ornithology books. His work occupies the meeting point between natural-history documentation and skilled image-making: each plate needed to communicate recognizable avian form while also functioning as a compelling printed composition. Collectors may therefore encounter his name on standalone works as well as on plates associated with illustrated books. Identifying an object requires attention to its medium, printed credit, bird subject, and publication context, particularly when distinguishing original art from printed material. Keulemans also has a durable entity footprint across Wikidata, Getty ULAN, national library authorities, the National Gallery of Art, and Art UK, supporting reliable matching among variant forms of his name.

## Common works and media

The works most closely associated with Keulemans are bird illustrations and lithographs created in the context of nineteenth-century ornithological publishing. Auction and appraisal material may include individual printed bird plates, natural-history works on paper, bound or formerly bound book illustrations, and less commonly paintings. The bird subject, technique, printed credit, and relationship to a particular publication are central identification details. A listing should state clearly whether the object appears to be original art, a period print, a later impression, or a reproduction rather than using the artist's name alone as a complete description.

## Market and appraisal context

Keulemans has an established presence in Appraisily's auction-record dataset, but the collected research pack does not include detailed major-auction-house cataloguing or individual realized prices. Appraisal should begin with object-level identification: whether the item is an original painting or drawing, a lithographic plate, or another printed illustration; which bird is depicted; and whether a publication can be identified. Comparisons are most useful when they match the same work type and, where possible, the same image or bibliographic context. Printed attribution alone should not make unlike objects equivalent. Physical condition, completeness, dimensions, inscriptions, and production context should be documented during inspection, while any value conclusion should rely on relevant public sales rather than a generalized artist-level estimate.

## Appraisily data basis

Appraisily artist pages combine public artist-identity research with auction records, auction-house context, sale dates, realized prices, and comparable lots when those records are available. Source limitations and attribution uncertainty are retained rather than converted into unsupported conclusions.

## Sources

- Wikidata: https://www.wikidata.org/wiki/Q1335286
- Getty Vocabulary Program: https://vocab.getty.edu/page/ulan/500041975
- National Gallery of Art: https://www.nga.gov/collection/artist-info.4496.html
- Art UK: https://artuk.org/discover/artists/keulemans-john-gerrard-18421912
- Wikipedia: https://en.wikipedia.org/wiki/John_Gerrard_Keulemans
- Wikipedia: https://nl.wikipedia.org/wiki/John_Gerrard_Keulemans
- Wikipedia: https://de.wikipedia.org/wiki/John_Gerrard_Keulemans
- Appraisily: https://appraisily.com/artist/johannes-gerardus-keulemans/
- Wikimedia Commons: https://commons.wikimedia.org/wiki/File:John_Gerrard_Keulemans.jpg