The Degolyer Library at Southern Methodist University
SMU's Degolyer Library holds an astonishing number of wonderful Texas-related items, especially photos and postcards. The homepage for their digital collections is here:
Of particular interest to Texans is the Lawrence T. Jones III Texas collection, here:
Also, the George C. Cook Dallas/Texas Image collection is superb:
Finally, the Degolyer Library's general collection of Texana photographs, manuscripts and imprints is vast and worth hours of perusal:
All of these collections are searchable by keywords.
The Degolyer Library is open Monday-Friday 8:30 a.m. to 5:00 p.m. Visitor parking is available.
Beauty is only skin deep but Texas is to the bone.