The article presents an analysis of the rich collection of private correspondence of the Białłozor, Koncza and Römer families. The addressees and addressers were from a group of inter-married landed nobility, thus the personal destinies of the representatives of these families were associated with the most important political, social and cultural processes underway in the first half of the 19th century. As a result, their correspondence is considered a broad history source. The accounts made of the same events, circumstances and experiences created a uniform narrative characteristic of a group of people sharing a similar sense and view of the world and value system. The correspondence discussed here is suitable for researching the sociocultural model of this group, formed through self-perception, the perception of others and the world.