ENThis article continues the research of 19th century Lithuanian Calvinist texts. After performing a textological linguistic analysis of eight works (Mykolas Cerauskas, Samuelis Nerlichas, four books by Aleksandras R. Močiulskis and two anonymous works, “Pamoksłey ir kozones ape smerti” and “Prisiwertimas, grieszna żmogaus ing DIewą”, it became clear that their orthography was more influenced not by the Lutheran Prussian Lithuanian publications, but by the Polish orthographic innovations of the time. The language of each publication had unique features related to the Northeastern Highland Lithuanian colloquial dialects and the Kėdainiai variant of the written language. After comparing the similarities and differences in the orthography and language of the publications, it was found that “Pamoksłey ..” (1864) was compiled by two editors – the middle part of the original text, sermons 9-12, was intensively edited by another writer. The fundamental similarities of the features of the text of the beginning and end of the Sermons with the features of the books compiled by Močiulskis allowed us to hypothesize that the original text of the sermons was compiled by Močiulskis. The second compiler of the Sermons, who sought to modernize the orthography and to give the edited part of the text many features of the Eastern Highland Lithuanian dialect, was probably the same author who compiled “Prisiwertimas ..” (1863).This is evidenced by some overlapping features of the orthography and language of the texts, though some differences were caused by different editing tactics of the compiler. Since the author of “Prisiwertimas ..” had various new orthographic ideas and used interesting language forms, it can be assumed that it could have been Karolis Nerlichas, who is said to have also written a grammar of the Lithuanian language. However, in that case, both these works must have been compiled before 1860, when Nerlichas died. Keywords: 19th century Lithuanian Calvinist writings, orthography, Eastern Highland Lithuanian dialects, text editing, Aleksandras R. Močiulskis, Samuelis Nerlichas, Karolis Nerlichas.