The article sums up the author’s experiences resulting from a field research in the north-western part of the Suwałki Region. The object of the research was a study of the relations between Catholics and Evangelicals in the former Polish-Prussian borderland. On the basis of her interlocutors’ utterances the author gives a chronological presentation of Catholic-Evangelical relations from the interwar period up to the present, showing how they changed over time. The problem of perception of the Volkslist and the usage of the concept of Volksdeutsch by both denominational groups is also discussed. An essential part of the analysis is the author’s endeavor to understand the identification of “Evangelicality” with “Germanness” by Catholics. She notices an interesting phenomenon: the mode of talking about the denominational group as a whole differs from that of talking about its particular representatives.