A two-story addition was constructed to the North in 1963, featuring a bank on the ground floor and a new 25,000 sq ft ballroom on the second level.

[3] On November 21, 1963, United States President John F. Kennedy and his wife, Jackie stayed at the hotel in Room 850.

The next morning, Kennedy gave what would be his last address in the Crystal Ballroom, just hours before he was assassinated in Dallas.

[10] Jim Thompson, the American author and screenwriter, known for his hardboiled crime fiction (The Getaway, The Grifters, After Dark, My Sweet), worked as a bellboy at the Hotel Texas for two years during Prohibition while attending high school during the day.

[5] In 2020, plans were announced to reopen the annex as a hotel, operated by the Le Méridien brand of Marriott International.