# Jacob C. Engel
**Wikidata**: [Q94931225](https://www.wikidata.org/wiki/Q94931225)  
**Source**: https://4ort.xyz/entity/jacob-c-engel


## References

1. Catalog of the German National Library
2. Integrated Authority File
3. [Österreichisches Biographisches Lexikon 1815–1950](https://www.biographien.ac.at/oebl/oebl_E/Engel_Jakob-Karl_1821_.xml)