The article focuses on showing memoirs of Napoleonic era – Franciszek Wiktor Dmochowski’s <em>Letters from a Former Sergeant Major</em> (Pol. <em>Pisma byłego wachmistrza</em>; 1843) – as a sign of vivacity of sentimentalism at the end of early part of the 19<sup>th</sup> century. Two-strip structure of narration – recording of historical data and recording of subjective emotional experiences – shows accordance with typical sentimental regulation: the more intensive inner life the richer description of external reality. The motif of unfortunate love plays an important part in carrying a recollection. Apart of sentimentally conventionalized narrative structure the work of Dmochowski is perceived by its editor, Andrzej Edward Koźmian, in the way that indicates a publishing manner of sentimentalism. The publisher in his <em>Preface</em> creates the author of memoirs according with sentimental anthropological patterns and explains this creation referring sentimental axiology which he consents to.