The C-131D 'Samaritan' 42808 was a military transport version of the Convair-Liner 240 built by General Dynamics. It was the first pressurized, twin engine transport ordered by the Military Air Transport Service. The T-29 version of this aircraft filled the back of the plane with student stations and was used to train bombardiers, navigators and electronic warfare officers.
[marchfield.org]

C-123K 'Provider' 54-612, manufactured by Fairchild Aircraft, Hagerstown, MD, and was delivered to the Air Force on December 20, 1955 at Ardmore AFB, OK. This aircraft was flown by 10 different units assigned to the Tactical Air Command, Air Force Reserve, and a two-year stint with USAFE at Dreux AB, France, as well as nine months at Leopoldville AP, Congo, until 1965. Our aircraft was converted from a B model to a K model in 1967. This aircraft is on loan from the USAF. . The museum's C-123 was originally built as a B model. In 1998, the plane was restored and painted in the markings it wore while assigned to the 1st Special Operations Wing, Eglin AFB, FL. Its nose art, "The Chief", is in honor of its volunteer Crew Chief, retired Chief Master Sergeant Jim Meek. Jim was the flight chief for one of the first C-123J's equipped with ski's to land in Greenland in 1958. He has given over 10,000 volunteer hours to the museum and has cared for the C-123 since 1981.
[marchfield.org]
Photo by Craig Maas on Thursday, August 11, 1994 at the March Air Force Base, Riverside, CA.