Oldham County is named for Williamson Simpson Oldham, a pioneer Texas lawyer and Confederate senator.
Surrounding County Courthouses:
N – Hartley County
E – Potter County
W – Quay County, New Mexico
Created: August 21, 1876 
County Seat:
Tascosa 1880 – 1915
Vega 1915 – present
County Courthouse – Vega
Location: 105 South Main Avenue / East Main Street
Built: 1914 – 1915
Style: Classical Revival
Architect: O G Roquemore
Contractor: W M Rice Construction Company of Dallas
Description: The building faces west and is a two story red colored brick and concrete structure. The building is located on spacious landscaped grounds in the center of the city. The west front of the building has two large Ionic columns rising from the entrance steps to the roof line. White colored trim is below the second story windows and forms a narrow horizontal band above the first story windows. The courtroom is located on the south side of the second story. The building was remodeled in 1967. An addition was constructed in 1986. The architect was John Notestine and the contractor was North Line Construction Company.
See: The contractor, William M Rice, also constructed courthouses as W M Rice Construction Company in Bailey County, Briscoe County, Cochran County, Freestone County, Limestone County, Lipscomb County, Parmer County and Wood County and designed the courthouse in Lynn County..
Note: The first courthouse was a two story sandstone structure built in Tascosa in 1884. The second and present courthouse was constructed in Vega at a cost of $35,000.
Old County Courthouse – Tascosa
Location: NE - Julian Bivins Boulevard / Tascosa Trail
Built: 1884
Style: Federal
Architect: Unknown
Contractor: Unknown
Description: The building faces south and is a two story stone and wood structure. The building is located on landscaped grounds of the Boys Ranch. The south front has a one story stone porch. The roof is hipped. The old courtroom was located on the east side of the first story. The building served as the courthouse until 1915 and is now the Juiian Bivins Museum..
Note: The cost of construction was $18,000. The courthouse was the site of many famous trails.
County Courthouse – Vega
Picture 1915 County Courthouse before remodeling
Old County Courthouse – Tascosa
Photos taken 2007, 2016 and 2019