Handbook of Texas Online - Current and historical information about Oldham County. - http://www.tsha.utexas.edu/handbook/online/articles/OO/hco2.html
Oldham County - Lists contact information for county and district court offices and includes a map and demographic information. - http://www.co.oldham.tx.us/
Amphibians and Reptiles in Oldham County - Texas Cooperative Wildlife Collection list of species found in the county. - http://wfscnet.tamu.edu/tcwc/checklist/OLDHA180.HTM
Oldham County Chamber of Commerce - Promoting and representing the agricultural, commercial, civic, and economic interests of Oldham County and the cities of Vega, Wildorado, Boy's Ranch, and Adrian, Texas. - http://www.oldhamcofc.org/