Andrew and Sarah (Calhoun) Simonds, 1889.
Andrew Simonds was a newspaper publisher, banker, business man, and incredibly wealthy in spite of the Civil War.
Sarah Calhoun was from the family of John C. Calhoun. Vice President, politician, plantation owner, all around scoundrel.
The sarcophagus was extraordinarily expensive to build at the time. It is one of the few that actually contain bodies and not just a memorial.