# Michael J. Schaack

> 1843--1906

**Wikidata**: [Q113806574](https://www.wikidata.org/wiki/Q113806574)  
**Source**: https://4ort.xyz/entity/michael-j-schaack


## References

1. Integrated Authority File
2. Virtual International Authority File
3. BnF authorities
4. NUKAT
5. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
6. National Library of Israel Names and Subjects Authority File