UTAH STATE PRISON — In a cramped room here in the Wasatch medium-security unit, inmates sit hunched over computers, trying to decipher the aged writings of people long dead.

Some scroll through reels of microfilm, searching for a name that can help unlock the secrets of the past.

They are among hundreds of inmates doing genealogical work in family-history centers run by The Church of Jesus Christ of Latter-day Saints inside the prison.

"The genealogical program here is a haven to get away from the environment within the prison itself," inmate Dan Maroney said. "It's a place for fellowship."

There are four family-history centers in the prison, with about 600 inmates doing work on their own genealogies or performing extractions — the indexing of names of long-dead individuals from land records, census forms, birth, death and marriage certificates for a database run by the LDS Church's Family History Library.

Prison-wide, the inmates extract about 500,000 to 1 million names per year for genealogists worldwide to use.

"One thing about the prison is we've got sort of a captive audience," joked Keith Jepsen, coordinator of the prison's family-history centers. "One thing that most of the men out here have is time, so it's a win-win program for everybody."

Inmate Steve Deeter sits at a computer where a woman's name is displayed on the screen, the cursive script magnified. He's double-checking to make sure a name extracted is accurate.

"I'm getting to pay back society through this service work that I'm doing right here, that's what I like," he said. "I've done a lot of my own personal genealogy, and somebody had to do exactly the same thing I'm doing so I could get those records, so that's what I'm doing, too. It's a 'pay it forward' thing."

The family-history centers are open seven days a week, and inmates can participate as much as they want. The inmates' convictions range from drugs, theft and sex offenses to murder. The centers are funded by the church and staffed by LDS missionaries like Gordon and Gayle Fletcher.

"You start to have a love for the inmates. You don't think you're ever going to," Gayle Fletcher said. "As you work with them, you learn to love them, and you just want the best for them."

Maroney spends eight hours a day at the center, researching his family history and helping other inmates write letters to genealogists and historical societies on the outside, sleuthing information that helps them trace their roots. Because of his skills, Maroney said, he has been offered a job on a trial basis with a professional genealogist when he is released in 2010.

"Genealogy has put me in touch with those who went before me," he said.