Madame Ouspensky was named Sophie Grigorievna Volochine when she was born and took the name Sophie Grigorievna Ouspensky when she married Piotr Demianovich Ouspensky. She was born on November 8, 1878 in Kharkoff, Ukraine, which was at the time under the rule of Russia. She died at the age of 83 on December 30, 1961 at Mendham, New Jersey, USA. Madame Ouspensky was a major contributor to the transmission of Gurdjieff’s ideas and teachings. She directed the studies of Gurdjieff's work at Mendham, New Jersey.

Sophie Ouspensky - by Irmis Popoff

Sophie Ouspensky (1878–1961) met Gurdjieff in Russia in 1913 and married P.D. Ouspensky in 1917. She led the work at Franklin Farms and was instrumental, along with Mme. de Salzmann, in bringing together the pupils of Ouspensky and Gurdjieff during the 1950s.

It’s Up to Ourselves - An excerpt on Madame Ouspensky by Jessmin Howarth

“Having felt, every time I came from her room, that whatever Madame said regarding the Work, organization, Mr. Gurdjieff, the house, or even individual people, was of general application and always connected with higher principles, I have decided to write down what and how I remember her conversations.”