ALAMEDA — His father roused Harry Gluckman awake from a deep sleep, urging the 11-year-old to get out of his cabin bed and climb to the deck of the steamship Heiyo Maru. The boy rushed outside to see the Golden Gate Bridge soaring above him. In the pre-dawn darkness of Oct. 21, 1940, he gaped at its beams and towers as the Japanese liner sailed beneath the famous gateway that had opened just three years earlier.”My father always referred to it after that as ‘My Golden Gate of Freedom’ whenever we crossed the bridge or came near it,” Gluckman said.The family was among up to 600 Jewish refugees who sailed into San Francisco Bay between 1939 and 1941, fleeing Nazi persecution in Germany, Austria, Lithuania, Czechoslovakia and Poland.They were part of a largely forgotten Pacific exodus that was much smaller than the stream of thousands of refugees who reached the East Coast.Gluckman, 82, is one of a handful of surviving refugees in the Bay Area who vividly remembers the transoceanic voyage to San Francisco. The Angel Island Immigration Station Foundation has spent months trying to track down others, hoping to share the little-known stories while there are still people who can tell them.