# Ferdinand Eisler
**Wikidata**: [Q104805093](https://www.wikidata.org/wiki/Q104805093)  
**Source**: https://4ort.xyz/entity/ferdinand-eisler


## References

1. [Digitized residence applications of the Prague Police Directorate  (conscription) 1850–1914](http://digi.nacr.cz/prihlasky2/index.php?action=link&ref=czarch:CZ-100000010:874&karton=3&folium=368)
2. [Source](http://digi.nacr.cz/prihlasky2/index.php?action=link&ref=czarch:CZ-100000010:874&karton=3&folium=368)