Nadezhda (Nadia) Tolstoy was born in Odessa in 1884. She studied music at the University of Petrograd and spoke several languages. During the First World War she did Red Cross work on the Galician front, where she met Count Ilya Tolstoy, the son of the novelist Leo Tolstoy; both had been married before, and they later married in America. Living with Ilya outside New York, she read deeply in mystical literature and esoteric philosophy, but books had not satisfied her and she was searching for a living Master.
Through their friends Malcolm and Jean Schloss she came to Harmon on 19 November 1931 for Meher Baba's blessing. No sooner had she set eyes on him than she exclaimed, "My search is over!" Baba spelled on his board, "You have been waiting for me a long time and now I have come. I will help you." He told her that the kriya yoga she had been practising was not for her, and later named her Nadine. On Baba's 1932 visit she saw in him the incarnation of Jesus Christ and gave her life to his cause; she also brought Ilya, who wept and said that for the first time he had met a man who had divine love. Ilya died about a year and a half later.
In December 1936 Nadine sailed to India with Garrett Fort and the Grand Duchess Marie to join Baba's Western ashram at Nasik, where her duty was to translate Baba's life and messages into Russian and to help the others. In June 1938 she came again, with Hedi Mertens, Helen Dahm and Irene Billo, to live with the women mandali on Meherabad Hill. There she was made matron of the maternity home in the ashram hospital, where Baba told her he wanted her to learn the real spirit of serving, selflessness.
Nadine travelled with Baba and the women on the Blue Bus tours, kept periods of silence at his order, and in 1939 lectured about him in Bangalore with Dr. Deshmukh and Norina Matchabelli. In May 1941 Baba sent her with Norina and Elizabeth Patterson to America to spread his message. In New York she lived with them, but developed sclerosis and her health declined.
Nadine died in New York's Roosevelt Hospital on 14 April 1946, nursed to the end by Adele Wolkin. Baba cabled: "Tell Elizabeth, Nadia lives in me, with me and for me more than ever before." He had once called her "one of my rocks on whom I can depend." Her ashes were laid at Meherabad, where Baba had Pendu build her tomb.