Lyubov Georgievna Kazyanina was born in Polotsk in 1897. She was the youngest of three sisters who devoted their lives to teaching.
In 1917, Lyubov graduated from the Polotsk Women's Gymnasium. After 2 years, her career began as a teacher. Prior to the Great Patriotic War Lyubov Georgievna worked in schools No. 5, 8, 10 and at a railway school in the Groma area. In the years 1936-1938. She studied in Moscow at the Central Institute of Correspondence Studies in Foreign Languages, where she received first the certificates of the completion of the German language courses and the assignment of an intermediate interpreter of socio-political literature from a foreign language to Russian, and later a certificate of the completion of three-year foreign language courses and the awarding of titles A high school teacher with the right to teach in the first seven classes. In the documents she is mentioned under the surname of her husband - Ivan Petrovich Deinis - Polotsk teacher and local historian.
In wartime Leonid Deynis and his family were evacuated in Beloyarsk and Shchuchin, where she also worked as a teacher. On her return to her native city from 1945 to 1959 she was the director of the II Seven-Year School, after which she left for a well-deserved rest. For her work, Lyubov Georgievna Deynis was awarded the Order of the Red Banner of Labor, with medals "For Valiant Labor in the Great Patriotic War", jubilee medals, badge "Excellence in Education of the BSSR". She died in 1983.
In the museum's exposition, there are other documents by L. G. Deynis and her family.