Pictures taken in area belongin to former Schlesien: https://krkonos.wordpress.com/
https://theodorfontane.de/2020/06/16/foerstertragoedien-im-iser-und-riesengebirge-3/. This is for Hermsdorf Unterm Kynast and surrounding areas.
See articles by Junker here: https://theodorfontane.de/autor/ullrich-junker/
See excellent source of information for Schlesien at this website: https://schaetzleingenealogy.de/en/home/