Ionov Vsevolod (1851—1922) – ethnographer and folklorist; specialist in Turkish, Yakutian studies, revolutionary ‘Narodnik’.
He was born in Astrakhan. After the gymnasium at Tsaritsyno, he entered the St. Petersburg Technological Institute, but in 1875, he was fired out for the political propaganda. In 1876, he was arrested; in 1877, he was sentenced to five years of forced labour for the revolutionary activity; I. spent them in the Novobelgorodsky Central Prison and later at the Nerchinsl Katorga (r. Kara). In 1883, he was transferred to the settlement in the Bayagantay Ukus in Yakutia, where he lived for six years, then he was sent to the Boturuss Ulus, from where in 1899, he went to Yakuts, on the permission of authorities.