(FORTUNE Magazine) – A remarkable number of top U.S. executives will mark the 30th anniversary of Hungary's brief revolt against Soviet domination on October 23: They are veterans of the uprising. Within weeks of the 1956 rebellion, about 200,000 fled Hungary, many of them college students who feared reprisal. Some 30,000 Hungarians came to the U.S. Many are at the top of the professions, including cinematographers Zsigmond Vilmos (The Deer Hunter) and Laszlo Kovacs (Close Encounters of the Third Kind). A large number of the emigrants head high-tech and venture capital firms. John Breyer, 51, a venture capitalist who helped start Computer World magazine, recently agreed to join with Hungary's government to publish a Hungarian edition. ''We don't want to rub in our success,'' says Breyer. ''I'd like to bridge the gap between the old 1956 Hungarians and the new Hungarians.'' These dozen executives are among the most prominent of Hungary's class of 1956: Agi Clark, 45, senior vice president, N.W. Ayer, a New York advertising agency. George Erde, 47, co-founder, Linear Technology, a semiconductor maker in California. Paulette and Laszlo Fono, 51 and 57, co-founders of the Magic Pan restaurant chain. Andrew Grove, 51, chairman and chief executive officer, Intel, a computer chipmaker. Erwin Kelen, 51, president of Datamyte, a computer manufacturer in Minneapolis. Thomas Klein, 53, and Andrew Varadi, 44, co-founders of Sierra Semiconductor, Sunnyvale, California. Andrew Lanyi, 61, managing partner, Ladenburg Thalmann & Co., a New York brokerage. Laszlo Papp, 57, president of Papp Associates, a New York architectural firm. Peter Rona, 44, president and chief executive, J. Henry Schroder Bank & Co. Andrew Vajna, 42, president, Carolco, a film production and distribution company.