I'm pretty sure that GLoTX got chartered by the GL of Louisiana. Think that you'll probably see most of the US GLs outside of the East coast being chartered by another GL in the US.
The individual TX lodges were chartered out of LA. The lodges then formed their own GL.
My impression is that most GLs off the East Coast were not formed by another GL, though I admit I have not counted either. See the links at https://en.m.wikipedia.org/wiki/History_of_Masonic_Grand_Lodges_in_North_America