When Spock and Galloway searched the Exeter's lower levels, they initially informed Captain Kirk that no crew was aboard, but many uniforms filled with dehydrated crystals were in the corridors. Dr. Leonard McCoy was later able to confirm that the minerals present near the uniforms were consistent in composition with Human bodies, sans water.
Bridge officers Edit
The USS Enterprise crew found the remains of desiccated personnel on the Exeter, including a several male bridge officers: a commander from the sciences division near the engineering station, a command division lieutenant at the helm/navigation console; an ensign at the communications station, an ensign from the sciences division, and an officer of unspecified rank near the environmental station. (TOS: "The Omega Glory")