Meyers Orts- und Verkehrs-Lexikon des Deutschen Reichs (Meyers Gazetteer), online edition, with GOV (genealogy.net) for post-1945 Polish equivalents · meyersgaz.org / gov.genealogy.net
Deutsch Krone, Marienwerder, Westpreussen, KrSt., myLatLng 53.27787/16.47122
Wikidata Q935744 Walcz carries the alias Deutsch Krone. The record says East Prussia; Meyers has it in West Prussia, name kept as written.