County History
Floyd County was named for an Alamo defender
Floyd County was created in 1876 and named after Dolphin Ward Floyd, who died at the Alamo in 1836.
Texas created Floyd County on August 21, 1876, from older Bexar and Young territories. The county is named for Dolphin Ward Floyd, a soldier who died at the Battle of the Alamo. The county seat, Floydada, was originally called Floyd City. It was renamed Floydada in 1892 to avoid confusion with another Floyd in Hunt County.
The county grew slowly at first. Droughts and grasshopper plagues pushed early settlers out in the 1890s. Railroads changed that. The Santa Fe arrived in 1910 and two more lines came in 1928. The population grew sharply between 1900 and 1930. Agriculture — especially cotton and wheat — built the local economy. The Handbook of Texas has detailed entries on the county and Floydada.
Source to confirm: Handbook of Texas — Floyd County