On April 26th, the fourth Oral History Seminar took place at the Institute of Philosophy and Sociology of the Polish Academy of Sciences (IFiS PAN). The event was co-organized by the QDA, the Polish Oral History Association and the Faculty of Culture and Arts of the University of Warsaw. This time, the focus of the analysis was a narrative from a collection of interviews with the oldest doctors in Warmia and Masuria (Mazury) (regions in northeastern Poland), recorded by Ms. Ewelina Gołębiowska from the State Archives in Olsztyn (SAO) and Mr. Zygmunt Trusewicz, a medical doctor from Olsztyn. The collection was created between 2019 and 2021 as part of a joint project between SAO and the Center for the History of Warmian-Masurian Medicine (Ośrodek Historii Warmińsko-Mazurskiej Medycyny), with the support of the Warmia and Mazury Medical Chamber in Olsztyn. In total, there are twenty recordings (audios and videos) with doctors from various specializations. All the narratives have been archived in SAO, and information about them is available on the website of the Audiovisual History Archive of Warmia and Masuria.