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The Traveling Frog - Rossitza and Stevan Olson: Nenko Balkanski, 1907-1977
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The Traveling Frog - Rossitza and Stevan Olson: Darena Georgieva, 1906-1987
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The Traveling Frog - Rossitza and Stevan Olson: Angel Vassilev, b. 1947
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The Traveling Frog - Rossitza and Stevan Olson: Vladimir Rilski, b.1905- d.1969
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The Traveling Frog - Rossitza and Stevan Olson: Vladimir Dimitrov-Maystora (Vladimir Dimitrov, the "Maestro")
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The Traveling Frog - Rossitza and Stevan Olson: Pencho Georgiev, 1900-1940
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The Traveling Frog - Rossitza and Stevan Olson: Georgi Bojilov, b.1935-d.2001