# Joseph Udo Lerch
**Wikidata**: [Q60817158](https://www.wikidata.org/wiki/Q60817158)  
**Source**: https://4ort.xyz/entity/joseph-udo-lerch


## References

1. CERL Thesaurus
2. Czech National Authority Database
3. [List of residents in Prague 1830-1910 (1920)](http://katalog.ahmp.cz/pragapublica/permalink?xid=830CE0C2516411E1819E002215111B5A&scan=1#scan1)
4. Österreichisches Biographisches Lexikon 1815–1950
5. Bibliography of the History of the Czech Lands
6. [Source](https://www.biographien.ac.at/oebl/oebl_L/Lerch_Joseph-Udo_1816_1892.xml)