Papers include corespondence, manuscripts, documents, photographs, a subject file, and printed materials. Correspondence includes a letter by Frank A. Golder. Manuscripts consist chiefly of extensive memoirs by Maĭdel,́ with many related documents, photographs, and other items appended. Her memoirs discuss her life up to 1919 in detail, with a great deal of coverage of her education. She studied at the Kronshtadskai︠a︡ Aleksandrinskai︠a︡ Zhenskai︠a︡ Gimnazii︠a︡, and then at the Imperatorskiĭ Zhenskiĭ Pedagogicheskiĭ Institut in St. Petersburg. Another memoir discusses her experiences in Petrozavodsk in 1941-44. There is a subject file concerning the Helsinki Aleksandrovskai︠a︡ Gimnazii︠a︡, with which Maĭdel ́was associated, in 1917-23. Printed materials include a book by E. Eĭkhgolt́s, "Ti︠u︡remnyĭ vrach i ego pat︠s︡ienty" (1916).