I agree that the "Handbook of Texas" is very useful; I consult it first where Texas history is involved. Would that every State had something similar online. I also agree with Lighter that a few items such as the one on "Yellow Rose..." veer toward romanticism.

The article on "Yellow Rose of Texas" was written by Juan Carlos Rodriguez. He cites Martha Anne Turner, "The Yellow Rose of Texas: Her Saga and Her Song," 1976, Shoal Creek.
His article is useful, but his second paragraph, about the alleged MS copy from 1836, although qualified, would lead many readers to ascribe more validity to the story than perhaps is justified.