HIALEAH, Fla. — Four months after they appeared in the waters between Havana and Miami, the four dead men remain nameless. At a morgue in the Florida Keys, they lie on stretchers stacked like bunk beds, their bodies chewed by sharks, their faces too putrified to be recognized.

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Maggie Steber for The New York Times

Ramon Saul Sanchez and Nilda Garcia, who is waiting to learn whether one of the bodies that washed ashore in Florida in August is that of her son, Osmani, who fled Cuba on a raft.

 

The police suspect they were Cuban rafters. Nilda Garcia thinks one of them might be her son — and the thought makes her weep. Fourteen years after she left Cuba on her own makeshift boat, she finds herself wondering once again: When will it end?

“How many mothers are going through this?” Ms. Garcia said in an interview at her daughter’s apartment here as she awaited DNA results on the bodies. “How many more are crying for their losses? How many young people have drowned in this sea? How many?”

Fifty years ago today, many Cubans cheered when Fidel Castro seized power in Havana, and even now, the revolution attracts many fans — as evidenced by the Canadian tour agencies advertising trips “to celebrate five decades of resilience.”

But the bodies speak to a different legacy. Here in South Florida, where roughly 850,000 Cubans have settled over the years, repeated waves of painful exile and family separation define the Castro era. The revolution never met their hopeful expectations, the island they love has slipped into decay, and for many, this week’s golden anniversary provides little more than a flashback to traumas, old and new.

“It pounds in everybody’s conscience every day,” said Ramon Saul Sanchez, 54, the founder of Movimiento Democracia, a Cuban-American group known for using boats to stage protests. “Fifty years is something very hard to accept.”

Some Cubans remain defiant. Huber Matos, a former revolutionary leader who came to Miami after Mr. Castro sent him to jail in 1959 for suggesting that the Cuban government included too many Communists, said that the anniversary inspired him to keep pushing for change.

“When you think of what you have to do, you can’t be sad,” Mr. Matos, 90, said. “To continue working, that’s the key.”

But for many, the revolution’s 50th anniversary has inspired a period of reflection. Cubans across Florida say they are mourning privately, or trying to forget, and formal commemorations are being kept to a minimum. If Miami in the 1980s was a place of militants, where “Havana vanities come to dust,” as Joan Didion wrote, today it is also a home to newer arrivals who ask, Must the pain go on?

A poll released this month by Florida International University shows that 55 percent of Cubans in Florida favor lifting the United States embargo against Cuba, up from 42 percent a year ago. It is the first time a clear majority has held that position since the survey began in 1991.

President-elect Barack Obama — while backing away from an earlier pledge to meet with Cuban leaders during his first year in office — condemned the current “failed policy” during the presidential campaign and promised to make it easier for Cuban-Americans to visit relatives on the island or send them larger amounts of money.

Even among those who support the 46-year-old embargo, like Senator Mel Martinez, a Republican, continued damage to families has become a more prominent concern.

“This is an ongoing tragedy,” said Mr. Martinez, who left Cuba at age 15 and spent four years without his parents. “How many people today are still being separated? How many people in Cuba are making plans to leave?”

Ms. Garcia was a “balsera,” one of the 38,000 rafters who fled Cuba in 1994. She said she left her suburb of Havana because her daughter needed medical care she could not get in Cuba for a brain tumor. Her son, Osmani, stayed. He was 20 at the time, a speaker of English and French, who became an independent journalist.

His work often put him at odds with the Castro government. In one dispatch, published on Oct. 26, 2007, he condemned Cuba’s foreign minister, Felipe Pérez Roque, for mischaracterizing comments from President Bush.

“I will not take the time to point out all the lies told by Felipe Pérez Roque at this press conference, but I will say there was a worried look on his face and those of his cohorts,” Mr. Garcia wrote, in an article posted online. “It almost seems that they too are realizing there is little time left to the Castro dictatorship and that change is very near.”

Instead, over the next year, political pressure on Mr. Garcia increased. In June, according to a report in a Cuban online forum, he was arrested and interrogated by state officials. Two months later, his mother said, he was filmed by a Cuban television reporter at a protest against the government, scaring him enough to flee.