Millions of Americans on Social Security are receiving $250 checks as part of the president's stimulus plan -- including an Anne Arundel woman who died more than 40 years ago.

The woman's son, 83-year-old James Hagner, said he got the surprise when he checked his mailbox late last week.

"It shocked me and I laughed all at the same time," Hagner said. "I don't even expect to get one for myself, and I get one for my mother from 43 years ago?"

His mother, Rose, died on Memorial Day in 1967.

Social Security representatives said there is a good explanation. Of the about 52 million checks that have been mailed out, about 10,000 of those have been sent to people who are deceased.

The agency blames the error on the strict mid-June deadline of mailing out all of the checks, which didn't leave officials much time to clean up all of their records.

Agents ask that people return the check if they receive it.

Hagner said he'd like to frame it and hang it on his wall.

"I just want to keep it as a souvenir. I'll never cash it," Hagner said.

Social Security officials said they aren't expecting to lose too much money to fraud. They're reminding the public that it's a federal offense to cash someone else's Social Security check.