Conrail 25 and 26 are former heavyweight Southern Railway cars that were purchased at a time when the Conrail OCS was rapidly changing under the direction of Stanley Crane. In fact, Conrail purchased three former Southern coaches on August 24, 1983.

Conrail 8 was the second oldest car in the Conrail Office Car Special fleet having been built in 1917. Conrail purchased three coaches from the Southern Railway: Conrail 24, Conrail 25 and Conrail 26. Conrail 24 was rebuilt by the Reading Passenger Shops into an 8 bedroom sleeping car numbered Conrail 8.