Abraham Sosne (Sosny/Sosna) was born in Russia and moved to the United States in the mid 1880s. He married Rachel Sosne, had several children, and passed away in Denver in 1949. The family owned Capitol Wet Wash Laundry on West Colfax in Denver.

Souvenir program for the Sadler's Wells Ballet's performance on November 14-December 9, 1956 at the Bolshoi Teatr in Moscow. Director: Ninette de Valois; choreography by Frederick Ashton.

Letter from Igor Ivanov to U.M. Vorontsov. This letter is not dated.

Letter from Int'l Foundation for Socio-Economic and Political Research (Gorbachev-Foundation) to U.M. Vorontsov. The letter extends personal gratitude for help during the "most important years of my life". The letter is signed "Mihail Gorbachev".

Letter from Permanent Representative of the Russian Federation to the UN, Andrey Denisov, to U.M. Vorontsov for his 75th Birthday.

Letter from the President of Russian-American Business Council to Ambassador and Plenipotentiary U.M. Vorontsov.

Letter from Security Council of the Russian Federation (SCRF): Commemorating his 75th birthday. Letter conferring warm praise and thanks onto U.M Vorontsov Signed SCRF Secretary Igor Ivanov: 7 October, 2004

Letter from Sergei Lavrov to U.M. Vorontsov

Letter from Y. Ushakov to U.M. Vorontsov expressing personal 70th birthday greetings.

Letter from Vladimir Chikvishvili (Ambassador to Georgia) to Ambassador and Plenipotentiary U.M. Vorontsov.