Towards a Community-accessible Cahuilla corpus: Developing HTR for J.P. Harrington’s handwritten fieldnotes on Mountain Cahuilla

Ray Huaute, Jacqueline Brixey


Abstract
This paper describes ongoing work to develop a corpus of Cahuilla language from the John Peabody Harrington collection, which contains linguistic and ethnographic fieldnotes documenting Indigenous languages of California and other regions across the Americas. Handwritten notes present numerous processing challenges, including scratch-outs, multilingual entries in Spanish and other Indigenous languages, unique abbreviations, and varying script orientations. We compare the efficacy of deep learning text recognition models to convert images of the notes into a machine-readable format, with a focus on respecting tribal data sovereignty in our methods. We find that Pylaia is the most accurate model for our data. Finally, we present the preliminary findings and indicate future directions for developing a Cahuilla corpus.
Anthology ID:
2026.americasnlp-6.10
Volume:
Proceedings of the Sixth Workshop on NLP for Indigenous Languages of the Americas (AmericasNLP)
Month:
July
Year:
2026
Address:
San Diego, California, USA
Editors:
Manuel Mager, Abteen Ebrahimi, Minh Duc Bui, Robert Pugh, Arturo Oncevay, Luis Chiruzzo, Rolando Coto Solano, Shruti Rijhwani, Katharina Von Der Wense
Venues:
AmericasNLP | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
107–114
Language:
URL:
https://preview.aclanthology.org/ingest-acl-workshops/2026.americasnlp-6.10/
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Bibkey:
Cite (ACL):
Ray Huaute and Jacqueline Brixey. 2026. Towards a Community-accessible Cahuilla corpus: Developing HTR for J.P. Harrington’s handwritten fieldnotes on Mountain Cahuilla. In Proceedings of the Sixth Workshop on NLP for Indigenous Languages of the Americas (AmericasNLP), pages 107–114, San Diego, California, USA. Association for Computational Linguistics.
Cite (Informal):
Towards a Community-accessible Cahuilla corpus: Developing HTR for J.P. Harrington’s handwritten fieldnotes on Mountain Cahuilla (Huaute & Brixey, AmericasNLP 2026)
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PDF:
https://preview.aclanthology.org/ingest-acl-workshops/2026.americasnlp-6.10.pdf