Narrative history of the San Antonio-San Diego Mail Line with biographical information about James E. Birch including transcriptions of newspaper clippings and documents, with supplementary photos and images. Index starts on page 166.

The Texas State Historical Association Quarterly Report includes "Papers read at the meetings of the Association, and such other contributions as may be accepted by the Committee" (volume 1, number 1). These include historical sketches, biographical material, personal accounts, and other research. Index is located at the end of the volume starting on page 653.