Business has been on hold at the Harbour Town Yacht Basin since March 3, when the couple that runs the marina disappeared.

"All the employees are hanging in there," said David White, whose sister Elizabeth Calvert is missing along with her husband, John. "Everyone's been very accommodating for the last three weeks."

Associated Press (ENLARGE)

John and Elizabeth Calvert have been missing 21 days.

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White reported the couple missing March 4 when they both missed business meetings. The man police think was the last to see the couple killed himself a week later.

Tony Gibus, manager of The Mariners Club and a friend of the couple, told The (Hilton Head) Island Packet that John Calvert had a system that lets managers run his businesses when he isn't around.

"We are very close to getting salaries paid and very close to getting money for all the operations," White told the newspaper. "The bottom line is: They are functioning, they will function much better next week and they will all be paid."

John Calvert, 47, and his 45-year-old wife run several businesses in the area, including managing boat slips at the marina where they live. Elizabeth Calvert, 45, also practices law in nearby Savannah.

They live part time on their 40-foot yacht in the gated Harbour Town community, known for its red-and-white-striped lighthouse that is a backdrop for the Heritage golf tournament each spring. They also have a home in Atlanta.