The publication is a commentary and texts of three previously unknown letters written to each other by N.I. Vorobyev and R.K. Gareeva (Urazmanova), who would later become the leading specialist in Tatar rites and holidays. The conducted analysis of the document revealed the peculiarities of scholarly communication between these individuals, the emotions of an inexperienced but science-minded young school teacher who was involved in the research work, and the influence of Marxist-Leninist ideology on the understanding of the importance of the ethnography science in the Soviet times. Gareeva’s first letter was written on January 23, 1961. In the letter, she shared her concerns about not understanding the need for ethnography. Vorobyev wrote her a detailed response in February of the same year. Nikolai Iosifovich divided the letter into sections. In the first part, when discussing the age of science and technology, he points out the spiritual needs. In his opinion, culture and art are no less important for people than material needs. When reflecting on the importance of ethnographic science, the scholar emphasises the need for a comprehensive study of the ‘development’ of the culture of different peoples, when old skills can be useful for meeting the modern needs. In the last section, he argues that a new generation of researchers is necessary to ensure the continuity of academic knowledge. The geographical education received by R.K. Gareeva, as N.I. Vorobyev is convinced, will help her look at traditional culture much more broadly. The second letter of Rufa (Raufa) Karimovna is not as worrisome as the first one. She expressed gratitude to Vorobyev for the answer and, inspired, she reports on her research plans to collect ethnographic materials on the culture of the Tatars and on preparation for entering graduate school. The revealed epistolary documents made it possible to reveal the subtle aspects of the formation and development of ethnological science in the Volga region, the importance of the individual/teacher in the professional development of researchers of the traditional culture of the peoples of the region.