Alamo City (San Antonio nickname)

The Alamo is the popular national landmark in San Antonio. San Antonio itself was called “the Alamo City” by the mid-1800s. In the 1880s, “Alamo City” showed up in book titles. The nickname is still used today.
 
 
Wikipedia: Alamo Mission in San Antonio
The Alamo (San Antonio de Valero Mission) is a former mission and fortress compound, now a museum, in San Antonio, Texas. The compound, which originally comprised a sanctuary and surrounding buildings, was built by the Spanish Empire in the 18th century for the education of local Native Americans after their conversion to Christianity.  After its abandonment as a mission, it was used as a fortress in the 19th century and was the scene of several military actions, including most notably the 1836 Battle of the Alamo, one of the pivotal battles between the forces of the Republic of Texas and Mexico during the Texas Revolution. 
 
6 January 1853, San Antonio (TX) Ledger, pg. 3 ad:
ALAMO CITY!
       
(OCLC WorldCat record)
Title: The Alamo city guide, San Antonio, Texas.:
Being a historical sketch of the ancient city of the Alamo, and business review; with notes of present advantages, together with a complete guide to all the prominent points of interest about the city, and a compilation of facts of value to visitors and residents /
Author(s): Gould, Steven. 
Publication: New York : Macgowan & Slipper, Printers,
Year: 1882
 
(OCLC WorldCat record)
Title: Desperate Duke, the Guadeloupe “galoot,” or, The angel of the Alamo City /
Author(s): Hall, Samuel Stone, 1838-1886. 
Publication: New York : Beadle & Adams,
Year: 1883
 
(OCLC WorldCat record)
Title: Historical and descriptive review of the industries of San Antonio, 1885:
commerce, trade and manufactures, manufacturing advantages, business and transportation facilities, together with sketches of the representative business houses and manufacturing establishments in the “Alamo City.”
Publication: San Antonio, Tex. : Land & Thompson,
Year: 1885
 
(OCLC WorldCat record)
Title: The Alamo City;
her prosperity and prospects /
Author(s): Morrison, Andrew. 
Publication: San Antonio, Tex. : Metropolitan Pub. Co.,
Year: 1887
 
(OCLC WorldCat record)
Title: A delightful winter resort!:
historic San Antonio, Texas, the Alamo city.
Corp Author(s): Citizens Association of San Antonio.; Publication Committee. 
Publication: [San Antonio, Tex.] : Johnson Bros., printers,
Year: 1887
 
28 September 1888, San Antonio (TX) Daily Express, pg. 8, col. 1:
J. G. Gilbert, of Corsicana, is visiting the Alamo City, and is a guest at the Maverick. 
 
4 September 1907, Fort Worth (TX) Telegram, “Santone or San Antonio,” pg. 4:
San Antonio is a good mouth filling word, and the residents of the Alamo City roll it around their tongues, careful that not a single syllable or accent escape.
 
Google Books
The Alamo City
by Pearson Newcomb
San Antonio, TX: Standard Print. Co.
1926