The article contains information about the history of functioning of the «free school for girls», which was opened in the late 19th century by the philanthropist, teacher, wife of Irkutsk public figure Nadezhda Vladimirovna Sukacheva in Irkutsk on her own funds and was maintained by her for 34 years. The data concerning the organisation of the educational process are covered, and biographical information about some representatives of the teaching staff is presented. The topic is addressed due to the low degree of study.