Aiken died on 17 August 1973 and was buried in Bonaventure Cemetery in Savannah, Georgia on the banks of the Wilmington River, and so was Mary after her death in 1992. The burial site was featured in "Midnight in the Garden of Good and Evil" by John Berendt. According to local legend, Aiken wished to have his tombstone fashioned in the shape of a bench as an invitation to visitors to stop and enjoy a martini at his grave. The bench is inscribed with "Give my love to the world", and "Cosmos Mariner—Destination Unknown".