Zinaida N. Yevreinov nee Behr was born in c. 1870s. Her parents were Nikolay N. Behr and Maria A. Behr nee Lancere. In the early XX - th century Zinaida N. had gotten married to Yevreinov, whose genealogy is still missing.
An article on Yevreinovs (Russian)
On Yevreinovs in Russian