Kelsey Berreth, 29, was last seen in public on Nov. 22 at a Safeway grocery store in Woodland Park, Colorado, with her baby.
Officials said the coroner needed to use dental records and DNA to identify the bodies.
"We remain hopeful that the U.S. Coast Guard effort will bring positive news," said a Carnival spokesman.
Two bags of money went flying out the back of a Brink's truck on Thursday, one with $140K and the other with $370K, police said.
Van Dyke faces between four years and 20 years behind bars when he is sentenced in January.