Final answer:
The provided information does not specifically detail the organization of the Texas PTA at the State Fair of Texas on October 19, 1909. The reference material discusses various historical events in Texas, but no direct connection to the Texas PTA's formation at that venue and date is given.
Step-by-step explanation:
The Texas PTA, which stands for Parent Teacher Association, was not specifically mentioned as being organized at the State Fair of Texas on October 19, 1909 in the provided reference material. The material speaks on various historical events and organizations in Texas, such as the gathering of delegates in 1832 to demand rights from Mexico leading to the constitution for an independent Texas, the notion of secession reflected by 'Texas Secede!', significant developments regarding transgender rights and activism in the 1990s, the establishment of the Colored Farmers' National Alliance in 1886 due to exclusionary practices, and other historic events related to suffrage movements from the late 19th to early 20th century. However, none of these events appear to be directly related to the formation of the Texas PTA at the State Fair of Texas.