People Exclusive

Mary Stuart Masterson Welcomes a Son

By Sarah Michaud

Monday November 02, 2009 02:20 PM EST

Mary Stuart Masterson

Scott Wintrow/Getty

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It's a boy for Mary Stuart Masterson and husband Jeremy Davidson, her rep tells PEOPLE.

The actress, 43, delivered a son on Oct. 11. Further details are unavailable at this time.

The baby boy is the first child for the couple, who met during a 2004 production of Cat on a Hot Tin Roof and married in 2006. They announced the pregnancy in May.

• Reporting by JULIE JORDAN